171752620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1\times {\mathrm{1021}}^1$

素因数の和:1690

約数の個数: 48

約数和(自身を含む): 389406528

約数和(自身を除く): 217653908

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 647, 1021, 1294, 2042, 2588, 3235, 4084, 5105, 6470, 8411, 10210, 12940, 13273, 16822, 20420, 26546, 33644, 42055, 53092, 66365, 84110, 132730, 168220, 265460, 660587, 1321174, 2642348, 3302935, 6605870, 8587631, 13211740, 17175262, 34350524, 42938155, 85876310, 171752620]

約数ペア:

[(1, 171752620), (2, 85876310), (4, 42938155), (5, 34350524), (10, 17175262), (13, 13211740), (20, 8587631), (26, 6605870), (52, 3302935), (65, 2642348), (130, 1321174), (260, 660587), (647, 265460), (1021, 168220), (1294, 132730), (2042, 84110), (2588, 66365), (3235, 53092), (4084, 42055), (5105, 33644), (6470, 26546), (8411, 20420), (10210, 16822), (12940, 13273)]