395879920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{159629}}^1$

素因数の和:159673

約数の個数: 40

約数和(自身を含む): 950117760

約数和(自身を除く): 554237840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 159629, 319258, 638516, 798145, 1277032, 1596290, 2554064, 3192580, 4948499, 6385160, 9896998, 12770320, 19793996, 24742495, 39587992, 49484990, 79175984, 98969980, 197939960, 395879920]

約数ペア:

[(1, 395879920), (2, 197939960), (4, 98969980), (5, 79175984), (8, 49484990), (10, 39587992), (16, 24742495), (20, 19793996), (31, 12770320), (40, 9896998), (62, 6385160), (80, 4948499), (124, 3192580), (155, 2554064), (248, 1596290), (310, 1277032), (496, 798145), (620, 638516), (1240, 319258), (2480, 159629)]