91390520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{971}}^1$

素因数の和:1176

約数の個数: 64

約数和(自身を含む): 222899040

約数和(自身を除く): 131508520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 181, 260, 362, 520, 724, 905, 971, 1448, 1810, 1942, 2353, 3620, 3884, 4706, 4855, 7240, 7768, 9412, 9710, 11765, 12623, 18824, 19420, 23530, 25246, 38840, 47060, 50492, 63115, 94120, 100984, 126230, 175751, 252460, 351502, 504920, 703004, 878755, 1406008, 1757510, 2284763, 3515020, 4569526, 7030040, 9139052, 11423815, 18278104, 22847630, 45695260, 91390520]

約数ペア:

[(1, 91390520), (2, 45695260), (4, 22847630), (5, 18278104), (8, 11423815), (10, 9139052), (13, 7030040), (20, 4569526), (26, 3515020), (40, 2284763), (52, 1757510), (65, 1406008), (104, 878755), (130, 703004), (181, 504920), (260, 351502), (362, 252460), (520, 175751), (724, 126230), (905, 100984), (971, 94120), (1448, 63115), (1810, 50492), (1942, 47060), (2353, 38840), (3620, 25246), (3884, 23530), (4706, 19420), (4855, 18824), (7240, 12623), (7768, 11765), (9412, 9710)]