280265960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{1493}}^1$

素因数の和:1555

約数の個数: 96

約数和(自身を含む): 717209640

約数和(自身を除く): 436943680

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 361, 380, 494, 520, 722, 760, 988, 1235, 1444, 1493, 1805, 1976, 2470, 2888, 2986, 3610, 4693, 4940, 5972, 7220, 7465, 9386, 9880, 11944, 14440, 14930, 18772, 19409, 23465, 28367, 29860, 37544, 38818, 46930, 56734, 59720, 77636, 93860, 97045, 113468, 141835, 155272, 187720, 194090, 226936, 283670, 368771, 388180, 538973, 567340, 737542, 776360, 1077946, 1134680, 1475084, 1843855, 2155892, 2694865, 2950168, 3687710, 4311784, 5389730, 7006649, 7375420, 10779460, 14013298, 14750840, 21558920, 28026596, 35033245, 56053192, 70066490, 140132980, 280265960]

約数ペア:

[(1, 280265960), (2, 140132980), (4, 70066490), (5, 56053192), (8, 35033245), (10, 28026596), (13, 21558920), (19, 14750840), (20, 14013298), (26, 10779460), (38, 7375420), (40, 7006649), (52, 5389730), (65, 4311784), (76, 3687710), (95, 2950168), (104, 2694865), (130, 2155892), (152, 1843855), (190, 1475084), (247, 1134680), (260, 1077946), (361, 776360), (380, 737542), (494, 567340), (520, 538973), (722, 388180), (760, 368771), (988, 283670), (1235, 226936), (1444, 194090), (1493, 187720), (1805, 155272), (1976, 141835), (2470, 113468), (2888, 97045), (2986, 93860), (3610, 77636), (4693, 59720), (4940, 56734), (5972, 46930), (7220, 38818), (7465, 37544), (9386, 29860), (9880, 28367), (11944, 23465), (14440, 19409), (14930, 18772)]