12642640

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{6871}}^1$

素因数の和:6907

約数の個数: 40

約数和(自身を含む): 30676608

約数和(自身を除く): 18033968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 6871, 13742, 27484, 34355, 54968, 68710, 109936, 137420, 158033, 274840, 316066, 549680, 632132, 790165, 1264264, 1580330, 2528528, 3160660, 6321320, 12642640]

約数ペア:

[(1, 12642640), (2, 6321320), (4, 3160660), (5, 2528528), (8, 1580330), (10, 1264264), (16, 790165), (20, 632132), (23, 549680), (40, 316066), (46, 274840), (80, 158033), (92, 137420), (115, 109936), (184, 68710), (230, 54968), (368, 34355), (460, 27484), (920, 13742), (1840, 6871)]