521004880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{3271}}^1$

素因数の和:3476

約数の個数: 80

約数和(自身を含む): 1329164928

約数和(自身を除く): 808160048

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 181, 220, 362, 440, 724, 880, 905, 1448, 1810, 1991, 2896, 3271, 3620, 3982, 6542, 7240, 7964, 9955, 13084, 14480, 15928, 16355, 19910, 26168, 31856, 32710, 35981, 39820, 52336, 65420, 71962, 79640, 130840, 143924, 159280, 179905, 261680, 287848, 359810, 575696, 592051, 719620, 1184102, 1439240, 2368204, 2878480, 2960255, 4736408, 5920510, 6512561, 9472816, 11841020, 13025122, 23682040, 26050244, 32562805, 47364080, 52100488, 65125610, 104200976, 130251220, 260502440, 521004880]

約数ペア:

[(1, 521004880), (2, 260502440), (4, 130251220), (5, 104200976), (8, 65125610), (10, 52100488), (11, 47364080), (16, 32562805), (20, 26050244), (22, 23682040), (40, 13025122), (44, 11841020), (55, 9472816), (80, 6512561), (88, 5920510), (110, 4736408), (176, 2960255), (181, 2878480), (220, 2368204), (362, 1439240), (440, 1184102), (724, 719620), (880, 592051), (905, 575696), (1448, 359810), (1810, 287848), (1991, 261680), (2896, 179905), (3271, 159280), (3620, 143924), (3982, 130840), (6542, 79640), (7240, 71962), (7964, 65420), (9955, 52336), (13084, 39820), (14480, 35981), (15928, 32710), (16355, 31856), (19910, 26168)]