128599640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{1109}}^1$

素因数の和:1356

約数の個数: 64

約数和(自身を含む): 313286400

約数和(自身を除く): 184686760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 223, 260, 446, 520, 892, 1109, 1115, 1784, 2218, 2230, 2899, 4436, 4460, 5545, 5798, 8872, 8920, 11090, 11596, 14417, 14495, 22180, 23192, 28834, 28990, 44360, 57668, 57980, 72085, 115336, 115960, 144170, 247307, 288340, 494614, 576680, 989228, 1236535, 1978456, 2473070, 3214991, 4946140, 6429982, 9892280, 12859964, 16074955, 25719928, 32149910, 64299820, 128599640]

約数ペア:

[(1, 128599640), (2, 64299820), (4, 32149910), (5, 25719928), (8, 16074955), (10, 12859964), (13, 9892280), (20, 6429982), (26, 4946140), (40, 3214991), (52, 2473070), (65, 1978456), (104, 1236535), (130, 989228), (223, 576680), (260, 494614), (446, 288340), (520, 247307), (892, 144170), (1109, 115960), (1115, 115336), (1784, 72085), (2218, 57980), (2230, 57668), (2899, 44360), (4436, 28990), (4460, 28834), (5545, 23192), (5798, 22180), (8872, 14495), (8920, 14417), (11090, 11596)]