15786980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{983}}^1$

素因数の和:1076

約数の個数: 48

約数和(自身を含む): 36699264

約数和(自身を除く): 20912284

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 73, 110, 146, 220, 292, 365, 730, 803, 983, 1460, 1606, 1966, 3212, 3932, 4015, 4915, 8030, 9830, 10813, 16060, 19660, 21626, 43252, 54065, 71759, 108130, 143518, 216260, 287036, 358795, 717590, 789349, 1435180, 1578698, 3157396, 3946745, 7893490, 15786980]

約数ペア:

[(1, 15786980), (2, 7893490), (4, 3946745), (5, 3157396), (10, 1578698), (11, 1435180), (20, 789349), (22, 717590), (44, 358795), (55, 287036), (73, 216260), (110, 143518), (146, 108130), (220, 71759), (292, 54065), (365, 43252), (730, 21626), (803, 19660), (983, 16060), (1460, 10813), (1606, 9830), (1966, 8030), (3212, 4915), (3932, 4015)]