68921580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{971}}^1$

素因数の和:1016

約数の個数: 144

約数和(自身を含む): 239065344

約数和(自身を除く): 170143764

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 169, 182, 195, 210, 260, 273, 338, 364, 390, 420, 455, 507, 546, 676, 780, 845, 910, 971, 1014, 1092, 1183, 1365, 1690, 1820, 1942, 2028, 2366, 2535, 2730, 2913, 3380, 3549, 3884, 4732, 4855, 5070, 5460, 5826, 5915, 6797, 7098, 9710, 10140, 11652, 11830, 12623, 13594, 14196, 14565, 17745, 19420, 20391, 23660, 25246, 27188, 29130, 33985, 35490, 37869, 40782, 50492, 58260, 63115, 67970, 70980, 75738, 81564, 88361, 101955, 126230, 135940, 151476, 164099, 176722, 189345, 203910, 252460, 265083, 328198, 353444, 378690, 407820, 441805, 492297, 530166, 656396, 757380, 820495, 883610, 984594, 1060332, 1148693, 1325415, 1640990, 1767220, 1969188, 2297386, 2461485, 2650830, 3281980, 3446079, 4594772, 4922970, 5301660, 5743465, 6892158, 9845940, 11486930, 13784316, 17230395, 22973860, 34460790, 68921580]

約数ペア:

[(1, 68921580), (2, 34460790), (3, 22973860), (4, 17230395), (5, 13784316), (6, 11486930), (7, 9845940), (10, 6892158), (12, 5743465), (13, 5301660), (14, 4922970), (15, 4594772), (20, 3446079), (21, 3281980), (26, 2650830), (28, 2461485), (30, 2297386), (35, 1969188), (39, 1767220), (42, 1640990), (52, 1325415), (60, 1148693), (65, 1060332), (70, 984594), (78, 883610), (84, 820495), (91, 757380), (105, 656396), (130, 530166), (140, 492297), (156, 441805), (169, 407820), (182, 378690), (195, 353444), (210, 328198), (260, 265083), (273, 252460), (338, 203910), (364, 189345), (390, 176722), (420, 164099), (455, 151476), (507, 135940), (546, 126230), (676, 101955), (780, 88361), (845, 81564), (910, 75738), (971, 70980), (1014, 67970), (1092, 63115), (1183, 58260), (1365, 50492), (1690, 40782), (1820, 37869), (1942, 35490), (2028, 33985), (2366, 29130), (2535, 27188), (2730, 25246), (2913, 23660), (3380, 20391), (3549, 19420), (3884, 17745), (4732, 14565), (4855, 14196), (5070, 13594), (5460, 12623), (5826, 11830), (5915, 11652), (6797, 10140), (7098, 9710)]