20227960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:376

約数の個数: 64

約数和(自身を含む): 48755520

約数和(自身を除く): 28527560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 151, 170, 197, 302, 340, 394, 604, 680, 755, 788, 985, 1208, 1510, 1576, 1970, 2567, 3020, 3349, 3940, 5134, 6040, 6698, 7880, 10268, 12835, 13396, 16745, 20536, 25670, 26792, 29747, 33490, 51340, 59494, 66980, 102680, 118988, 133960, 148735, 237976, 297470, 505699, 594940, 1011398, 1189880, 2022796, 2528495, 4045592, 5056990, 10113980, 20227960]

約数ペア:

[(1, 20227960), (2, 10113980), (4, 5056990), (5, 4045592), (8, 2528495), (10, 2022796), (17, 1189880), (20, 1011398), (34, 594940), (40, 505699), (68, 297470), (85, 237976), (136, 148735), (151, 133960), (170, 118988), (197, 102680), (302, 66980), (340, 59494), (394, 51340), (604, 33490), (680, 29747), (755, 26792), (788, 25670), (985, 20536), (1208, 16745), (1510, 13396), (1576, 12835), (1970, 10268), (2567, 7880), (3020, 6698), (3349, 6040), (3940, 5134)]