80522440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^2\times {\mathrm{541}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 184534740

約数和(自身を除く): 104012300

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 541, 610, 1082, 1220, 2164, 2440, 2705, 3721, 4328, 5410, 7442, 10820, 14884, 18605, 21640, 29768, 33001, 37210, 66002, 74420, 132004, 148840, 165005, 264008, 330010, 660020, 1320040, 2013061, 4026122, 8052244, 10065305, 16104488, 20130610, 40261220, 80522440]

約数ペア:

[(1, 80522440), (2, 40261220), (4, 20130610), (5, 16104488), (8, 10065305), (10, 8052244), (20, 4026122), (40, 2013061), (61, 1320040), (122, 660020), (244, 330010), (305, 264008), (488, 165005), (541, 148840), (610, 132004), (1082, 74420), (1220, 66002), (2164, 37210), (2440, 33001), (2705, 29768), (3721, 21640), (4328, 18605), (5410, 14884), (7442, 10820)]