17944040

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:570

約数の個数: 64

約数和(自身を含む): 43200000

約数和(自身を除く): 25255960

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 499, 580, 620, 899, 998, 1160, 1240, 1798, 1996, 2495, 3596, 3992, 4495, 4990, 7192, 8990, 9980, 14471, 15469, 17980, 19960, 28942, 30938, 35960, 57884, 61876, 72355, 77345, 115768, 123752, 144710, 154690, 289420, 309380, 448601, 578840, 618760, 897202, 1794404, 2243005, 3588808, 4486010, 8972020, 17944040]

約数ペア:

[(1, 17944040), (2, 8972020), (4, 4486010), (5, 3588808), (8, 2243005), (10, 1794404), (20, 897202), (29, 618760), (31, 578840), (40, 448601), (58, 309380), (62, 289420), (116, 154690), (124, 144710), (145, 123752), (155, 115768), (232, 77345), (248, 72355), (290, 61876), (310, 57884), (499, 35960), (580, 30938), (620, 28942), (899, 19960), (998, 17980), (1160, 15469), (1240, 14471), (1798, 9980), (1996, 8990), (2495, 7192), (3596, 4990), (3992, 4495)]