397463950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{611483}}^1$

素因数の和:611508

約数の個数: 24

約数和(自身を含む): 796152168

約数和(自身を除く): 398688218

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 611483, 1222966, 3057415, 6114830, 7949279, 15287075, 15898558, 30574150, 39746395, 79492790, 198731975, 397463950]

約数ペア:

[(1, 397463950), (2, 198731975), (5, 79492790), (10, 39746395), (13, 30574150), (25, 15898558), (26, 15287075), (50, 7949279), (65, 6114830), (130, 3057415), (325, 1222966), (650, 611483)]