19791760

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{3389}}^1$

素因数の和:3475

約数の個数: 40

約数和(自身を含む): 46659960

約数和(自身を除く): 26868200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 3389, 5840, 6778, 13556, 16945, 27112, 33890, 54224, 67780, 135560, 247397, 271120, 494794, 989588, 1236985, 1979176, 2473970, 3958352, 4947940, 9895880, 19791760]

約数ペア:

[(1, 19791760), (2, 9895880), (4, 4947940), (5, 3958352), (8, 2473970), (10, 1979176), (16, 1236985), (20, 989588), (40, 494794), (73, 271120), (80, 247397), (146, 135560), (292, 67780), (365, 54224), (584, 33890), (730, 27112), (1168, 16945), (1460, 13556), (2920, 6778), (3389, 5840)]