178814920

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{797}}^1$

素因数の和:958

約数の個数: 64

約数和(自身を含む): 413683200

約数和(自身を除く): 234868280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 79, 142, 158, 284, 316, 355, 395, 568, 632, 710, 790, 797, 1420, 1580, 1594, 2840, 3160, 3188, 3985, 5609, 6376, 7970, 11218, 15940, 22436, 28045, 31880, 44872, 56090, 56587, 62963, 112180, 113174, 125926, 224360, 226348, 251852, 282935, 314815, 452696, 503704, 565870, 629630, 1131740, 1259260, 2263480, 2518520, 4470373, 8940746, 17881492, 22351865, 35762984, 44703730, 89407460, 178814920]

約数ペア:

[(1, 178814920), (2, 89407460), (4, 44703730), (5, 35762984), (8, 22351865), (10, 17881492), (20, 8940746), (40, 4470373), (71, 2518520), (79, 2263480), (142, 1259260), (158, 1131740), (284, 629630), (316, 565870), (355, 503704), (395, 452696), (568, 314815), (632, 282935), (710, 251852), (790, 226348), (797, 224360), (1420, 125926), (1580, 113174), (1594, 112180), (2840, 62963), (3160, 56587), (3188, 56090), (3985, 44872), (5609, 31880), (6376, 28045), (7970, 22436), (11218, 15940)]