221821860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{284387}}^1$

素因数の和:284412

約数の個数: 48

約数和(自身を含む): 668880576

約数和(自身を除く): 447058716

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 284387, 568774, 853161, 1137548, 1421935, 1706322, 2843870, 3412644, 3697031, 4265805, 5687740, 7394062, 8531610, 11091093, 14788124, 17063220, 18485155, 22182186, 36970310, 44364372, 55455465, 73940620, 110910930, 221821860]

約数ペア:

[(1, 221821860), (2, 110910930), (3, 73940620), (4, 55455465), (5, 44364372), (6, 36970310), (10, 22182186), (12, 18485155), (13, 17063220), (15, 14788124), (20, 11091093), (26, 8531610), (30, 7394062), (39, 5687740), (52, 4265805), (60, 3697031), (65, 3412644), (78, 2843870), (130, 1706322), (156, 1421935), (195, 1137548), (260, 853161), (390, 568774), (780, 284387)]