40261220

素因数分解:

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

素因数の和:672

約数の個数: 36

約数和(自身を含む): 86116212

約数和(自身を除く): 45854992

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 541, 610, 1082, 1220, 2164, 2705, 3721, 5410, 7442, 10820, 14884, 18605, 33001, 37210, 66002, 74420, 132004, 165005, 330010, 660020, 2013061, 4026122, 8052244, 10065305, 20130610, 40261220]

約数ペア:

[(1, 40261220), (2, 20130610), (4, 10065305), (5, 8052244), (10, 4026122), (20, 2013061), (61, 660020), (122, 330010), (244, 165005), (305, 132004), (541, 74420), (610, 66002), (1082, 37210), (1220, 33001), (2164, 18605), (2705, 14884), (3721, 10820), (5410, 7442)]