258696670

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{389}}^1\times {\mathrm{911}}^1$

素因数の和:1380

約数の個数: 32

約数和(自身を含む): 473765760

約数和(自身を除く): 215069090

約数列:

[1, 2, 5, 10, 73, 146, 365, 389, 730, 778, 911, 1822, 1945, 3890, 4555, 9110, 28397, 56794, 66503, 133006, 141985, 283970, 332515, 354379, 665030, 708758, 1771895, 3543790, 25869667, 51739334, 129348335, 258696670]

約数ペア:

[(1, 258696670), (2, 129348335), (5, 51739334), (10, 25869667), (73, 3543790), (146, 1771895), (365, 708758), (389, 665030), (730, 354379), (778, 332515), (911, 283970), (1822, 141985), (1945, 133006), (3890, 66503), (4555, 56794), (9110, 28397)]