20160120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3907}}^1$

素因数の和:3964

約数の個数: 64

約数和(自身を含む): 61902720

約数和(自身を除く): 41742600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 3907, 5160, 7814, 11721, 15628, 19535, 23442, 31256, 39070, 46884, 58605, 78140, 93768, 117210, 156280, 168001, 234420, 336002, 468840, 504003, 672004, 840005, 1008006, 1344008, 1680010, 2016012, 2520015, 3360020, 4032024, 5040030, 6720040, 10080060, 20160120]

約数ペア:

[(1, 20160120), (2, 10080060), (3, 6720040), (4, 5040030), (5, 4032024), (6, 3360020), (8, 2520015), (10, 2016012), (12, 1680010), (15, 1344008), (20, 1008006), (24, 840005), (30, 672004), (40, 504003), (43, 468840), (60, 336002), (86, 234420), (120, 168001), (129, 156280), (172, 117210), (215, 93768), (258, 78140), (344, 58605), (430, 46884), (516, 39070), (645, 31256), (860, 23442), (1032, 19535), (1290, 15628), (1720, 11721), (2580, 7814), (3907, 5160)]