397165020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{945631}}^1$

素因数の和:945650

約数の個数: 48

約数和(自身を含む): 1270929408

約数和(自身を除く): 873764388

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 945631, 1891262, 2836893, 3782524, 4728155, 5673786, 6619417, 9456310, 11347572, 13238834, 14184465, 18912620, 19858251, 26477668, 28368930, 33097085, 39716502, 56737860, 66194170, 79433004, 99291255, 132388340, 198582510, 397165020]

約数ペア:

[(1, 397165020), (2, 198582510), (3, 132388340), (4, 99291255), (5, 79433004), (6, 66194170), (7, 56737860), (10, 39716502), (12, 33097085), (14, 28368930), (15, 26477668), (20, 19858251), (21, 18912620), (28, 14184465), (30, 13238834), (35, 11347572), (42, 9456310), (60, 6619417), (70, 5673786), (84, 4728155), (105, 3782524), (140, 2836893), (210, 1891262), (420, 945631)]