90491960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1723}}^1$

素因数の和:1848

約数の個数: 64

約数和(自身を含む): 221568480

約数和(自身を除く): 131076520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 101, 104, 130, 202, 260, 404, 505, 520, 808, 1010, 1313, 1723, 2020, 2626, 3446, 4040, 5252, 6565, 6892, 8615, 10504, 13130, 13784, 17230, 22399, 26260, 34460, 44798, 52520, 68920, 89596, 111995, 174023, 179192, 223990, 348046, 447980, 696092, 870115, 895960, 1392184, 1740230, 2262299, 3480460, 4524598, 6960920, 9049196, 11311495, 18098392, 22622990, 45245980, 90491960]

約数ペア:

[(1, 90491960), (2, 45245980), (4, 22622990), (5, 18098392), (8, 11311495), (10, 9049196), (13, 6960920), (20, 4524598), (26, 3480460), (40, 2262299), (52, 1740230), (65, 1392184), (101, 895960), (104, 870115), (130, 696092), (202, 447980), (260, 348046), (404, 223990), (505, 179192), (520, 174023), (808, 111995), (1010, 89596), (1313, 68920), (1723, 52520), (2020, 44798), (2626, 34460), (3446, 26260), (4040, 22399), (5252, 17230), (6565, 13784), (6892, 13130), (8615, 10504)]