20215140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:413

約数の個数: 96

約数和(自身を含む): 62536320

約数和(自身を除く): 42321180

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 109, 110, 132, 165, 218, 220, 281, 327, 330, 436, 545, 562, 654, 660, 843, 1090, 1124, 1199, 1308, 1405, 1635, 1686, 2180, 2398, 2810, 3091, 3270, 3372, 3597, 4215, 4796, 5620, 5995, 6182, 6540, 7194, 8430, 9273, 11990, 12364, 14388, 15455, 16860, 17985, 18546, 23980, 30629, 30910, 35970, 37092, 46365, 61258, 61820, 71940, 91887, 92730, 122516, 153145, 183774, 185460, 306290, 336919, 367548, 459435, 612580, 673838, 918870, 1010757, 1347676, 1684595, 1837740, 2021514, 3369190, 4043028, 5053785, 6738380, 10107570, 20215140]

約数ペア:

[(1, 20215140), (2, 10107570), (3, 6738380), (4, 5053785), (5, 4043028), (6, 3369190), (10, 2021514), (11, 1837740), (12, 1684595), (15, 1347676), (20, 1010757), (22, 918870), (30, 673838), (33, 612580), (44, 459435), (55, 367548), (60, 336919), (66, 306290), (109, 185460), (110, 183774), (132, 153145), (165, 122516), (218, 92730), (220, 91887), (281, 71940), (327, 61820), (330, 61258), (436, 46365), (545, 37092), (562, 35970), (654, 30910), (660, 30629), (843, 23980), (1090, 18546), (1124, 17985), (1199, 16860), (1308, 15455), (1405, 14388), (1635, 12364), (1686, 11990), (2180, 9273), (2398, 8430), (2810, 7194), (3091, 6540), (3270, 6182), (3372, 5995), (3597, 5620), (4215, 4796)]