18225520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7349}}^1$

素因数の和:7393

約数の個数: 40

約数和(自身を含む): 43747200

約数和(自身を除く): 25521680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 7349, 14698, 29396, 36745, 58792, 73490, 117584, 146980, 227819, 293960, 455638, 587920, 911276, 1139095, 1822552, 2278190, 3645104, 4556380, 9112760, 18225520]

約数ペア:

[(1, 18225520), (2, 9112760), (4, 4556380), (5, 3645104), (8, 2278190), (10, 1822552), (16, 1139095), (20, 911276), (31, 587920), (40, 455638), (62, 293960), (80, 227819), (124, 146980), (155, 117584), (248, 73490), (310, 58792), (496, 36745), (620, 29396), (1240, 14698), (2480, 7349)]