128371280

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{69767}}^1$

素因数の和:69803

約数の個数: 40

約数和(自身を含む): 311444352

約数和(自身を除く): 183073072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 69767, 139534, 279068, 348835, 558136, 697670, 1116272, 1395340, 1604641, 2790680, 3209282, 5581360, 6418564, 8023205, 12837128, 16046410, 25674256, 32092820, 64185640, 128371280]

約数ペア:

[(1, 128371280), (2, 64185640), (4, 32092820), (5, 25674256), (8, 16046410), (10, 12837128), (16, 8023205), (20, 6418564), (23, 5581360), (40, 3209282), (46, 2790680), (80, 1604641), (92, 1395340), (115, 1116272), (184, 697670), (230, 558136), (368, 348835), (460, 279068), (920, 139534), (1840, 69767)]