18261680

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:198

約数の個数: 80

約数和(自身を含む): 44595360

約数和(自身を除く): 26333680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 59, 73, 80, 106, 118, 146, 212, 236, 265, 292, 295, 365, 424, 472, 530, 584, 590, 730, 848, 944, 1060, 1168, 1180, 1460, 2120, 2360, 2920, 3127, 3869, 4240, 4307, 4720, 5840, 6254, 7738, 8614, 12508, 15476, 15635, 17228, 19345, 21535, 25016, 30952, 31270, 34456, 38690, 43070, 50032, 61904, 62540, 68912, 77380, 86140, 125080, 154760, 172280, 228271, 250160, 309520, 344560, 456542, 913084, 1141355, 1826168, 2282710, 3652336, 4565420, 9130840, 18261680]

約数ペア:

[(1, 18261680), (2, 9130840), (4, 4565420), (5, 3652336), (8, 2282710), (10, 1826168), (16, 1141355), (20, 913084), (40, 456542), (53, 344560), (59, 309520), (73, 250160), (80, 228271), (106, 172280), (118, 154760), (146, 125080), (212, 86140), (236, 77380), (265, 68912), (292, 62540), (295, 61904), (365, 50032), (424, 43070), (472, 38690), (530, 34456), (584, 31270), (590, 30952), (730, 25016), (848, 21535), (944, 19345), (1060, 17228), (1168, 15635), (1180, 15476), (1460, 12508), (2120, 8614), (2360, 7738), (2920, 6254), (3127, 5840), (3869, 4720), (4240, 4307)]