289396820

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{379}}^1\times {\mathrm{523}}^1$

素因数の和:984

約数の個数: 48

約数和(自身を含む): 618864960

約数和(自身を除く): 329468140

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 379, 523, 730, 758, 1046, 1460, 1516, 1895, 2092, 2615, 3790, 5230, 7580, 10460, 27667, 38179, 55334, 76358, 110668, 138335, 152716, 190895, 198217, 276670, 381790, 396434, 553340, 763580, 792868, 991085, 1982170, 3964340, 14469841, 28939682, 57879364, 72349205, 144698410, 289396820]

約数ペア:

[(1, 289396820), (2, 144698410), (4, 72349205), (5, 57879364), (10, 28939682), (20, 14469841), (73, 3964340), (146, 1982170), (292, 991085), (365, 792868), (379, 763580), (523, 553340), (730, 396434), (758, 381790), (1046, 276670), (1460, 198217), (1516, 190895), (1895, 152716), (2092, 138335), (2615, 110668), (3790, 76358), (5230, 55334), (7580, 38179), (10460, 27667)]