401025320

素因数分解:

$2^3\times 5^1\times {\mathrm{617}}^1\times {\mathrm{16249}}^1$

素因数の和:16877

約数の個数: 32

約数和(自身を含む): 903825000

約数和(自身を除く): 502799680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 617, 1234, 2468, 3085, 4936, 6170, 12340, 16249, 24680, 32498, 64996, 81245, 129992, 162490, 324980, 649960, 10025633, 20051266, 40102532, 50128165, 80205064, 100256330, 200512660, 401025320]

約数ペア:

[(1, 401025320), (2, 200512660), (4, 100256330), (5, 80205064), (8, 50128165), (10, 40102532), (20, 20051266), (40, 10025633), (617, 649960), (1234, 324980), (2468, 162490), (3085, 129992), (4936, 81245), (6170, 64996), (12340, 32498), (16249, 24680)]