28213040

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4831}}^1$

素因数の和:4917

約数の個数: 40

約数和(自身を含む): 66507648

約数和(自身を除く): 38294608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 4831, 5840, 9662, 19324, 24155, 38648, 48310, 77296, 96620, 193240, 352663, 386480, 705326, 1410652, 1763315, 2821304, 3526630, 5642608, 7053260, 14106520, 28213040]

約数ペア:

[(1, 28213040), (2, 14106520), (4, 7053260), (5, 5642608), (8, 3526630), (10, 2821304), (16, 1763315), (20, 1410652), (40, 705326), (73, 386480), (80, 352663), (146, 193240), (292, 96620), (365, 77296), (584, 48310), (730, 38648), (1168, 24155), (1460, 19324), (2920, 9662), (4831, 5840)]