659920

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:199

約数の個数: 40

約数和(自身を含む): 1569096

約数和(自身を除く): 909176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 113, 146, 226, 292, 365, 452, 565, 584, 730, 904, 1130, 1168, 1460, 1808, 2260, 2920, 4520, 5840, 8249, 9040, 16498, 32996, 41245, 65992, 82490, 131984, 164980, 329960, 659920]

約数ペア:

[(1, 659920), (2, 329960), (4, 164980), (5, 131984), (8, 82490), (10, 65992), (16, 41245), (20, 32996), (40, 16498), (73, 9040), (80, 8249), (113, 5840), (146, 4520), (226, 2920), (292, 2260), (365, 1808), (452, 1460), (565, 1168), (584, 1130), (730, 904)]