9991320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{599}}^1$

素因数の和:752

約数の個数: 64

約数和(自身を含む): 30240000

約数和(自身を除く): 20248680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 139, 278, 417, 556, 599, 695, 834, 1112, 1198, 1390, 1668, 1797, 2085, 2396, 2780, 2995, 3336, 3594, 4170, 4792, 5560, 5990, 7188, 8340, 8985, 11980, 14376, 16680, 17970, 23960, 35940, 71880, 83261, 166522, 249783, 333044, 416305, 499566, 666088, 832610, 999132, 1248915, 1665220, 1998264, 2497830, 3330440, 4995660, 9991320]

約数ペア:

[(1, 9991320), (2, 4995660), (3, 3330440), (4, 2497830), (5, 1998264), (6, 1665220), (8, 1248915), (10, 999132), (12, 832610), (15, 666088), (20, 499566), (24, 416305), (30, 333044), (40, 249783), (60, 166522), (120, 83261), (139, 71880), (278, 35940), (417, 23960), (556, 17970), (599, 16680), (695, 14376), (834, 11980), (1112, 8985), (1198, 8340), (1390, 7188), (1668, 5990), (1797, 5560), (2085, 4792), (2396, 4170), (2780, 3594), (2995, 3336)]