20196044920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{68147}}^1$

素因数の和:68428

約数の個数: 64

約数和(自身を含む): 47103897600

約数和(自身を除く): 26907852680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 239, 248, 310, 478, 620, 956, 1195, 1240, 1912, 2390, 4780, 7409, 9560, 14818, 29636, 37045, 59272, 68147, 74090, 136294, 148180, 272588, 296360, 340735, 545176, 681470, 1362940, 2112557, 2725880, 4225114, 8450228, 10562785, 16287133, 16900456, 21125570, 32574266, 42251140, 65148532, 81435665, 84502280, 130297064, 162871330, 325742660, 504901123, 651485320, 1009802246, 2019604492, 2524505615, 4039208984, 5049011230, 10098022460, 20196044920]

約数ペア:

[(1, 20196044920), (2, 10098022460), (4, 5049011230), (5, 4039208984), (8, 2524505615), (10, 2019604492), (20, 1009802246), (31, 651485320), (40, 504901123), (62, 325742660), (124, 162871330), (155, 130297064), (239, 84502280), (248, 81435665), (310, 65148532), (478, 42251140), (620, 32574266), (956, 21125570), (1195, 16900456), (1240, 16287133), (1912, 10562785), (2390, 8450228), (4780, 4225114), (7409, 2725880), (9560, 2112557), (14818, 1362940), (29636, 681470), (37045, 545176), (59272, 340735), (68147, 296360), (74090, 272588), (136294, 148180)]