320191785

素因数分解:

$3^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1933}}^1$

素因数の和:2359

約数の個数: 40

約数和(自身を含む): 575674440

約数和(自身を除く): 255482655

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 409, 1227, 1933, 2045, 3681, 5799, 6135, 9665, 11043, 17397, 18405, 28995, 33129, 52191, 55215, 86985, 156573, 165645, 260955, 782865, 790597, 2371791, 3952985, 7115373, 11858955, 21346119, 35576865, 64038357, 106730595, 320191785]

約数ペア:

[(1, 320191785), (3, 106730595), (5, 64038357), (9, 35576865), (15, 21346119), (27, 11858955), (45, 7115373), (81, 3952985), (135, 2371791), (405, 790597), (409, 782865), (1227, 260955), (1933, 165645), (2045, 156573), (3681, 86985), (5799, 55215), (6135, 52191), (9665, 33129), (11043, 28995), (17397, 18405)]