79996540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{983}}^1$

素因数の和:1318

約数の個数: 48

約数和(自身を含む): 181677888

約数和(自身を除く): 101681348

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 313, 626, 983, 1252, 1565, 1966, 3130, 3932, 4069, 4915, 6260, 8138, 9830, 12779, 16276, 19660, 20345, 25558, 40690, 51116, 63895, 81380, 127790, 255580, 307679, 615358, 1230716, 1538395, 3076790, 3999827, 6153580, 7999654, 15999308, 19999135, 39998270, 79996540]

約数ペア:

[(1, 79996540), (2, 39998270), (4, 19999135), (5, 15999308), (10, 7999654), (13, 6153580), (20, 3999827), (26, 3076790), (52, 1538395), (65, 1230716), (130, 615358), (260, 307679), (313, 255580), (626, 127790), (983, 81380), (1252, 63895), (1565, 51116), (1966, 40690), (3130, 25558), (3932, 20345), (4069, 19660), (4915, 16276), (6260, 12779), (8138, 9830)]