28783900

素因数分解:

$2^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{3943}}^1$

素因数の和:4030

約数の個数: 36

約数和(自身を含む): 63332752

約数和(自身を除く): 34548852

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 73, 100, 146, 292, 365, 730, 1460, 1825, 3650, 3943, 7300, 7886, 15772, 19715, 39430, 78860, 98575, 197150, 287839, 394300, 575678, 1151356, 1439195, 2878390, 5756780, 7195975, 14391950, 28783900]

約数ペア:

[(1, 28783900), (2, 14391950), (4, 7195975), (5, 5756780), (10, 2878390), (20, 1439195), (25, 1151356), (50, 575678), (73, 394300), (100, 287839), (146, 197150), (292, 98575), (365, 78860), (730, 39430), (1460, 19715), (1825, 15772), (3650, 7886), (3943, 7300)]