72381040

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:506

約数の個数: 80

約数和(自身を含む): 175890528

約数和(自身を除く): 103509488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 53, 80, 86, 106, 172, 212, 215, 265, 344, 397, 424, 430, 530, 688, 794, 848, 860, 1060, 1588, 1720, 1985, 2120, 2279, 3176, 3440, 3970, 4240, 4558, 6352, 7940, 9116, 11395, 15880, 17071, 18232, 21041, 22790, 31760, 34142, 36464, 42082, 45580, 68284, 84164, 85355, 91160, 105205, 136568, 168328, 170710, 182320, 210410, 273136, 336656, 341420, 420820, 682840, 841640, 904763, 1365680, 1683280, 1809526, 3619052, 4523815, 7238104, 9047630, 14476208, 18095260, 36190520, 72381040]

約数ペア:

[(1, 72381040), (2, 36190520), (4, 18095260), (5, 14476208), (8, 9047630), (10, 7238104), (16, 4523815), (20, 3619052), (40, 1809526), (43, 1683280), (53, 1365680), (80, 904763), (86, 841640), (106, 682840), (172, 420820), (212, 341420), (215, 336656), (265, 273136), (344, 210410), (397, 182320), (424, 170710), (430, 168328), (530, 136568), (688, 105205), (794, 91160), (848, 85355), (860, 84164), (1060, 68284), (1588, 45580), (1720, 42082), (1985, 36464), (2120, 34142), (2279, 31760), (3176, 22790), (3440, 21041), (3970, 18232), (4240, 17071), (4558, 15880), (6352, 11395), (7940, 9116)]