64749800

素因数分解:

$2^3\times 5^2\times {\mathrm{421}}^1\times {\mathrm{769}}^1$

素因数の和:1206

約数の個数: 48

約数和(自身を含む): 151097100

約数和(自身を除く): 86347300

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 421, 769, 842, 1538, 1684, 2105, 3076, 3368, 3845, 4210, 6152, 7690, 8420, 10525, 15380, 16840, 19225, 21050, 30760, 38450, 42100, 76900, 84200, 153800, 323749, 647498, 1294996, 1618745, 2589992, 3237490, 6474980, 8093725, 12949960, 16187450, 32374900, 64749800]

約数ペア:

[(1, 64749800), (2, 32374900), (4, 16187450), (5, 12949960), (8, 8093725), (10, 6474980), (20, 3237490), (25, 2589992), (40, 1618745), (50, 1294996), (100, 647498), (200, 323749), (421, 153800), (769, 84200), (842, 76900), (1538, 42100), (1684, 38450), (2105, 30760), (3076, 21050), (3368, 19225), (3845, 16840), (4210, 15380), (6152, 10525), (7690, 8420)]