28898420

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{433}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 62995968

約数和(自身を除く): 34097548

約数列:

[1, 2, 4, 5, 10, 20, 47, 71, 94, 142, 188, 235, 284, 355, 433, 470, 710, 866, 940, 1420, 1732, 2165, 3337, 4330, 6674, 8660, 13348, 16685, 20351, 30743, 33370, 40702, 61486, 66740, 81404, 101755, 122972, 153715, 203510, 307430, 407020, 614860, 1444921, 2889842, 5779684, 7224605, 14449210, 28898420]

約数ペア:

[(1, 28898420), (2, 14449210), (4, 7224605), (5, 5779684), (10, 2889842), (20, 1444921), (47, 614860), (71, 407020), (94, 307430), (142, 203510), (188, 153715), (235, 122972), (284, 101755), (355, 81404), (433, 66740), (470, 61486), (710, 40702), (866, 33370), (940, 30743), (1420, 20351), (1732, 16685), (2165, 13348), (3337, 8660), (4330, 6674)]