1989028440

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{857}}^1$

素因数の和:1191

約数の個数: 256

約数和(自身を含む): 7610803200

約数和(自身を除く): 5621774760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 307, 315, 360, 378, 420, 504, 540, 614, 630, 756, 840, 857, 921, 945, 1080, 1228, 1260, 1512, 1535, 1714, 1842, 1890, 2149, 2456, 2520, 2571, 2763, 3070, 3428, 3684, 3780, 4285, 4298, 4605, 5142, 5526, 5999, 6140, 6447, 6856, 7368, 7560, 7713, 8289, 8570, 8596, 9210, 10284, 10745, 11052, 11998, 12280, 12855, 12894, 13815, 15426, 16578, 17140, 17192, 17997, 18420, 19341, 20568, 21490, 22104, 23139, 23996, 25710, 25788, 27630, 29995, 30852, 32235, 33156, 34280, 35994, 36840, 38565, 38682, 41445, 42980, 46278, 47992, 51420, 51576, 53991, 55260, 58023, 59990, 61704, 64470, 66312, 71988, 77130, 77364, 82890, 85960, 89985, 92556, 96705, 102840, 107982, 110520, 115695, 116046, 119980, 128940, 143976, 154260, 154728, 161973, 165780, 179970, 185112, 193410, 215964, 231390, 232092, 239960, 257880, 263099, 269955, 290115, 308520, 323946, 331560, 359940, 386820, 431928, 462780, 464184, 526198, 539910, 580230, 647892, 719880, 773640, 789297, 809865, 925560, 1052396, 1079820, 1160460, 1295784, 1315495, 1578594, 1619730, 1841693, 2104792, 2159640, 2320920, 2367891, 2630990, 3157188, 3239460, 3683386, 3946485, 4735782, 5261980, 5525079, 6314376, 6478920, 7103673, 7366772, 7892970, 9208465, 9471564, 10523960, 11050158, 11839455, 14207346, 14733544, 15785940, 16575237, 18416930, 18943128, 22100316, 23678910, 27625395, 28414692, 31571880, 33150474, 35518365, 36833860, 44200632, 47357820, 49725711, 55250790, 56829384, 66300948, 71036730, 73667720, 82876185, 94715640, 99451422, 110501580, 132601896, 142073460, 165752370, 198902844, 221003160, 248628555, 284146920, 331504740, 397805688, 497257110, 663009480, 994514220, 1989028440]

約数ペア:

[(1, 1989028440), (2, 994514220), (3, 663009480), (4, 497257110), (5, 397805688), (6, 331504740), (7, 284146920), (8, 248628555), (9, 221003160), (10, 198902844), (12, 165752370), (14, 142073460), (15, 132601896), (18, 110501580), (20, 99451422), (21, 94715640), (24, 82876185), (27, 73667720), (28, 71036730), (30, 66300948), (35, 56829384), (36, 55250790), (40, 49725711), (42, 47357820), (45, 44200632), (54, 36833860), (56, 35518365), (60, 33150474), (63, 31571880), (70, 28414692), (72, 27625395), (84, 23678910), (90, 22100316), (105, 18943128), (108, 18416930), (120, 16575237), (126, 15785940), (135, 14733544), (140, 14207346), (168, 11839455), (180, 11050158), (189, 10523960), (210, 9471564), (216, 9208465), (252, 7892970), (270, 7366772), (280, 7103673), (307, 6478920), (315, 6314376), (360, 5525079), (378, 5261980), (420, 4735782), (504, 3946485), (540, 3683386), (614, 3239460), (630, 3157188), (756, 2630990), (840, 2367891), (857, 2320920), (921, 2159640), (945, 2104792), (1080, 1841693), (1228, 1619730), (1260, 1578594), (1512, 1315495), (1535, 1295784), (1714, 1160460), (1842, 1079820), (1890, 1052396), (2149, 925560), (2456, 809865), (2520, 789297), (2571, 773640), (2763, 719880), (3070, 647892), (3428, 580230), (3684, 539910), (3780, 526198), (4285, 464184), (4298, 462780), (4605, 431928), (5142, 386820), (5526, 359940), (5999, 331560), (6140, 323946), (6447, 308520), (6856, 290115), (7368, 269955), (7560, 263099), (7713, 257880), (8289, 239960), (8570, 232092), (8596, 231390), (9210, 215964), (10284, 193410), (10745, 185112), (11052, 179970), (11998, 165780), (12280, 161973), (12855, 154728), (12894, 154260), (13815, 143976), (15426, 128940), (16578, 119980), (17140, 116046), (17192, 115695), (17997, 110520), (18420, 107982), (19341, 102840), (20568, 96705), (21490, 92556), (22104, 89985), (23139, 85960), (23996, 82890), (25710, 77364), (25788, 77130), (27630, 71988), (29995, 66312), (30852, 64470), (32235, 61704), (33156, 59990), (34280, 58023), (35994, 55260), (36840, 53991), (38565, 51576), (38682, 51420), (41445, 47992), (42980, 46278)]