289707920

素因数分解:

$2^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{20231}}^1$

素因数の和:20423

約数の個数: 40

約数和(自身を含む): 677367360

約数和(自身を除く): 387659440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 179, 358, 716, 895, 1432, 1790, 2864, 3580, 7160, 14320, 20231, 40462, 80924, 101155, 161848, 202310, 323696, 404620, 809240, 1618480, 3621349, 7242698, 14485396, 18106745, 28970792, 36213490, 57941584, 72426980, 144853960, 289707920]

約数ペア:

[(1, 289707920), (2, 144853960), (4, 72426980), (5, 57941584), (8, 36213490), (10, 28970792), (16, 18106745), (20, 14485396), (40, 7242698), (80, 3621349), (179, 1618480), (358, 809240), (716, 404620), (895, 323696), (1432, 202310), (1790, 161848), (2864, 101155), (3580, 80924), (7160, 40462), (14320, 20231)]