18431995840

素因数分解:

$2^6\times 5^1\times {\mathrm{797}}^1\times {\mathrm{72271}}^1$

素因数の和:73085

約数の個数: 56

約数和(自身を含む): 43946868672

約数和(自身を除く): 25514872832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 797, 1594, 3188, 3985, 6376, 7970, 12752, 15940, 25504, 31880, 51008, 63760, 72271, 127520, 144542, 255040, 289084, 361355, 578168, 722710, 1156336, 1445420, 2312672, 2890840, 4625344, 5781680, 11563360, 23126720, 57599987, 115199974, 230399948, 287999935, 460799896, 575999870, 921599792, 1151999740, 1843199584, 2303999480, 3686399168, 4607998960, 9215997920, 18431995840]

約数ペア:

[(1, 18431995840), (2, 9215997920), (4, 4607998960), (5, 3686399168), (8, 2303999480), (10, 1843199584), (16, 1151999740), (20, 921599792), (32, 575999870), (40, 460799896), (64, 287999935), (80, 230399948), (160, 115199974), (320, 57599987), (797, 23126720), (1594, 11563360), (3188, 5781680), (3985, 4625344), (6376, 2890840), (7970, 2312672), (12752, 1445420), (15940, 1156336), (25504, 722710), (31880, 578168), (51008, 361355), (63760, 289084), (72271, 255040), (127520, 144542)]