31803680

素因数分解:

$2^5\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1009}}^1$

素因数の和:1221

約数の個数: 48

約数和(自身を含む): 75592440

約数和(自身を除く): 43788760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 197, 394, 788, 985, 1009, 1576, 1970, 2018, 3152, 3940, 4036, 5045, 6304, 7880, 8072, 10090, 15760, 16144, 20180, 31520, 32288, 40360, 80720, 161440, 198773, 397546, 795092, 993865, 1590184, 1987730, 3180368, 3975460, 6360736, 7950920, 15901840, 31803680]

約数ペア:

[(1, 31803680), (2, 15901840), (4, 7950920), (5, 6360736), (8, 3975460), (10, 3180368), (16, 1987730), (20, 1590184), (32, 993865), (40, 795092), (80, 397546), (160, 198773), (197, 161440), (394, 80720), (788, 40360), (985, 32288), (1009, 31520), (1576, 20180), (1970, 16144), (2018, 15760), (3152, 10090), (3940, 8072), (4036, 7880), (5045, 6304)]