771461080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{20323}}^1$

素因数の和:20420

約数の個数: 64

約数和(自身を含む): 1895009760

約数和(自身を除く): 1123548680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 73, 104, 130, 146, 260, 292, 365, 520, 584, 730, 949, 1460, 1898, 2920, 3796, 4745, 7592, 9490, 18980, 20323, 37960, 40646, 81292, 101615, 162584, 203230, 264199, 406460, 528398, 812920, 1056796, 1320995, 1483579, 2113592, 2641990, 2967158, 5283980, 5934316, 7417895, 10567960, 11868632, 14835790, 19286527, 29671580, 38573054, 59343160, 77146108, 96432635, 154292216, 192865270, 385730540, 771461080]

約数ペア:

[(1, 771461080), (2, 385730540), (4, 192865270), (5, 154292216), (8, 96432635), (10, 77146108), (13, 59343160), (20, 38573054), (26, 29671580), (40, 19286527), (52, 14835790), (65, 11868632), (73, 10567960), (104, 7417895), (130, 5934316), (146, 5283980), (260, 2967158), (292, 2641990), (365, 2113592), (520, 1483579), (584, 1320995), (730, 1056796), (949, 812920), (1460, 528398), (1898, 406460), (2920, 264199), (3796, 203230), (4745, 162584), (7592, 101615), (9490, 81292), (18980, 40646), (20323, 37960)]