71686840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^2\times {\mathrm{2131}}^1$

素因数の和:2200

約数の個数: 48

約数和(自身を含む): 167127480

約数和(自身を除く): 95440640

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 841, 1160, 1682, 2131, 3364, 4205, 4262, 6728, 8410, 8524, 10655, 16820, 17048, 21310, 33640, 42620, 61799, 85240, 123598, 247196, 308995, 494392, 617990, 1235980, 1792171, 2471960, 3584342, 7168684, 8960855, 14337368, 17921710, 35843420, 71686840]

約数ペア:

[(1, 71686840), (2, 35843420), (4, 17921710), (5, 14337368), (8, 8960855), (10, 7168684), (20, 3584342), (29, 2471960), (40, 1792171), (58, 1235980), (116, 617990), (145, 494392), (232, 308995), (290, 247196), (580, 123598), (841, 85240), (1160, 61799), (1682, 42620), (2131, 33640), (3364, 21310), (4205, 17048), (4262, 16820), (6728, 10655), (8410, 8524)]