17880620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 39210528

約数和(自身を除く): 21329908

約数列:

[1, 2, 4, 5, 10, 20, 37, 73, 74, 146, 148, 185, 292, 331, 365, 370, 662, 730, 740, 1324, 1460, 1655, 2701, 3310, 5402, 6620, 10804, 12247, 13505, 24163, 24494, 27010, 48326, 48988, 54020, 61235, 96652, 120815, 122470, 241630, 244940, 483260, 894031, 1788062, 3576124, 4470155, 8940310, 17880620]

約数ペア:

[(1, 17880620), (2, 8940310), (4, 4470155), (5, 3576124), (10, 1788062), (20, 894031), (37, 483260), (73, 244940), (74, 241630), (146, 122470), (148, 120815), (185, 96652), (292, 61235), (331, 54020), (365, 48988), (370, 48326), (662, 27010), (730, 24494), (740, 24163), (1324, 13505), (1460, 12247), (1655, 10804), (2701, 6620), (3310, 5402)]