20064440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1471}}^1$

素因数の和:1524

約数の個数: 64

約数和(自身を含む): 50872320

約数和(自身を除く): 30807880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1471, 1705, 2728, 2942, 3410, 5884, 6820, 7355, 11768, 13640, 14710, 16181, 29420, 32362, 45601, 58840, 64724, 80905, 91202, 129448, 161810, 182404, 228005, 323620, 364808, 456010, 501611, 647240, 912020, 1003222, 1824040, 2006444, 2508055, 4012888, 5016110, 10032220, 20064440]

約数ペア:

[(1, 20064440), (2, 10032220), (4, 5016110), (5, 4012888), (8, 2508055), (10, 2006444), (11, 1824040), (20, 1003222), (22, 912020), (31, 647240), (40, 501611), (44, 456010), (55, 364808), (62, 323620), (88, 228005), (110, 182404), (124, 161810), (155, 129448), (220, 91202), (248, 80905), (310, 64724), (341, 58840), (440, 45601), (620, 32362), (682, 29420), (1240, 16181), (1364, 14710), (1471, 13640), (1705, 11768), (2728, 7355), (2942, 6820), (3410, 5884)]