131415820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{7309}}^1$

素因数の和:7378

約数の個数: 48

約数和(自身を含む): 294739200

約数和(自身を除く): 163323380

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 580, 620, 899, 1798, 3596, 4495, 7309, 8990, 14618, 17980, 29236, 36545, 73090, 146180, 211961, 226579, 423922, 453158, 847844, 906316, 1059805, 1132895, 2119610, 2265790, 4239220, 4531580, 6570791, 13141582, 26283164, 32853955, 65707910, 131415820]

約数ペア:

[(1, 131415820), (2, 65707910), (4, 32853955), (5, 26283164), (10, 13141582), (20, 6570791), (29, 4531580), (31, 4239220), (58, 2265790), (62, 2119610), (116, 1132895), (124, 1059805), (145, 906316), (155, 847844), (290, 453158), (310, 423922), (580, 226579), (620, 211961), (899, 146180), (1798, 73090), (3596, 36545), (4495, 29236), (7309, 17980), (8990, 14618)]