644255640

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2749}}^1$

素因数の和:2807

約数の個数: 256

約数和(自身を含む): 2534400000

約数和(自身を除く): 1890144360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 31, 35, 36, 40, 42, 45, 54, 56, 60, 62, 63, 70, 72, 84, 90, 93, 105, 108, 120, 124, 126, 135, 140, 155, 168, 180, 186, 189, 210, 216, 217, 248, 252, 270, 279, 280, 310, 315, 360, 372, 378, 420, 434, 465, 504, 540, 558, 620, 630, 651, 744, 756, 837, 840, 868, 930, 945, 1080, 1085, 1116, 1240, 1260, 1302, 1395, 1512, 1674, 1736, 1860, 1890, 1953, 2170, 2232, 2520, 2604, 2749, 2790, 3255, 3348, 3720, 3780, 3906, 4185, 4340, 5208, 5498, 5580, 5859, 6510, 6696, 7560, 7812, 8247, 8370, 8680, 9765, 10996, 11160, 11718, 13020, 13745, 15624, 16494, 16740, 19243, 19530, 21992, 23436, 24741, 26040, 27490, 29295, 32988, 33480, 38486, 39060, 41235, 46872, 49482, 54980, 57729, 58590, 65976, 74223, 76972, 78120, 82470, 85219, 96215, 98964, 109960, 115458, 117180, 123705, 148446, 153944, 164940, 170438, 173187, 192430, 197928, 230916, 234360, 247410, 255657, 288645, 296892, 329880, 340876, 346374, 371115, 384860, 426095, 461832, 494820, 511314, 519561, 577290, 593784, 596533, 681752, 692748, 742230, 766971, 769720, 852190, 865935, 989640, 1022628, 1039122, 1154580, 1193066, 1278285, 1385496, 1484460, 1533942, 1704380, 1731870, 1789599, 2045256, 2078244, 2300913, 2309160, 2386132, 2556570, 2597805, 2968920, 2982665, 3067884, 3408760, 3463740, 3579198, 3834855, 4156488, 4601826, 4772264, 5113140, 5195610, 5368797, 5965330, 6135768, 6927480, 7158396, 7669710, 8947995, 9203652, 10226280, 10391220, 10737594, 11504565, 11930660, 14316792, 15339420, 16106391, 17895990, 18407304, 20782440, 21475188, 23009130, 23861320, 26843985, 30678840, 32212782, 35791980, 42950376, 46018260, 53687970, 64425564, 71583960, 80531955, 92036520, 107375940, 128851128, 161063910, 214751880, 322127820, 644255640]

約数ペア:

[(1, 644255640), (2, 322127820), (3, 214751880), (4, 161063910), (5, 128851128), (6, 107375940), (7, 92036520), (8, 80531955), (9, 71583960), (10, 64425564), (12, 53687970), (14, 46018260), (15, 42950376), (18, 35791980), (20, 32212782), (21, 30678840), (24, 26843985), (27, 23861320), (28, 23009130), (30, 21475188), (31, 20782440), (35, 18407304), (36, 17895990), (40, 16106391), (42, 15339420), (45, 14316792), (54, 11930660), (56, 11504565), (60, 10737594), (62, 10391220), (63, 10226280), (70, 9203652), (72, 8947995), (84, 7669710), (90, 7158396), (93, 6927480), (105, 6135768), (108, 5965330), (120, 5368797), (124, 5195610), (126, 5113140), (135, 4772264), (140, 4601826), (155, 4156488), (168, 3834855), (180, 3579198), (186, 3463740), (189, 3408760), (210, 3067884), (216, 2982665), (217, 2968920), (248, 2597805), (252, 2556570), (270, 2386132), (279, 2309160), (280, 2300913), (310, 2078244), (315, 2045256), (360, 1789599), (372, 1731870), (378, 1704380), (420, 1533942), (434, 1484460), (465, 1385496), (504, 1278285), (540, 1193066), (558, 1154580), (620, 1039122), (630, 1022628), (651, 989640), (744, 865935), (756, 852190), (837, 769720), (840, 766971), (868, 742230), (930, 692748), (945, 681752), (1080, 596533), (1085, 593784), (1116, 577290), (1240, 519561), (1260, 511314), (1302, 494820), (1395, 461832), (1512, 426095), (1674, 384860), (1736, 371115), (1860, 346374), (1890, 340876), (1953, 329880), (2170, 296892), (2232, 288645), (2520, 255657), (2604, 247410), (2749, 234360), (2790, 230916), (3255, 197928), (3348, 192430), (3720, 173187), (3780, 170438), (3906, 164940), (4185, 153944), (4340, 148446), (5208, 123705), (5498, 117180), (5580, 115458), (5859, 109960), (6510, 98964), (6696, 96215), (7560, 85219), (7812, 82470), (8247, 78120), (8370, 76972), (8680, 74223), (9765, 65976), (10996, 58590), (11160, 57729), (11718, 54980), (13020, 49482), (13745, 46872), (15624, 41235), (16494, 39060), (16740, 38486), (19243, 33480), (19530, 32988), (21992, 29295), (23436, 27490), (24741, 26040)]