131439568

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{421}}^1$

素因数の和:540

約数の個数: 80

約数和(自身を含む): 293036800

約数和(自身を除く): 161597232

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 79, 104, 152, 158, 208, 247, 304, 316, 421, 494, 632, 842, 988, 1027, 1264, 1501, 1684, 1976, 2054, 3002, 3368, 3952, 4108, 5473, 6004, 6736, 7999, 8216, 10946, 12008, 15998, 16432, 19513, 21892, 24016, 31996, 33259, 39026, 43784, 63992, 66518, 78052, 87568, 103987, 127984, 133036, 156104, 207974, 266072, 312208, 415948, 432367, 532144, 631921, 831896, 864734, 1263842, 1663792, 1729468, 2527684, 3458936, 5055368, 6917872, 8214973, 10110736, 16429946, 32859892, 65719784, 131439568]

約数ペア:

[(1, 131439568), (2, 65719784), (4, 32859892), (8, 16429946), (13, 10110736), (16, 8214973), (19, 6917872), (26, 5055368), (38, 3458936), (52, 2527684), (76, 1729468), (79, 1663792), (104, 1263842), (152, 864734), (158, 831896), (208, 631921), (247, 532144), (304, 432367), (316, 415948), (421, 312208), (494, 266072), (632, 207974), (842, 156104), (988, 133036), (1027, 127984), (1264, 103987), (1501, 87568), (1684, 78052), (1976, 66518), (2054, 63992), (3002, 43784), (3368, 39026), (3952, 33259), (4108, 31996), (5473, 24016), (6004, 21892), (6736, 19513), (7999, 16432), (8216, 15998), (10946, 12008)]