641567220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1527541}}^1$

素因数の和:1527560

約数の個数: 48

約数和(自身を含む): 2053016448

約数和(自身を除く): 1411449228

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 1527541, 3055082, 4582623, 6110164, 7637705, 9165246, 10692787, 15275410, 18330492, 21385574, 22913115, 30550820, 32078361, 42771148, 45826230, 53463935, 64156722, 91652460, 106927870, 128313444, 160391805, 213855740, 320783610, 641567220]

約数ペア:

[(1, 641567220), (2, 320783610), (3, 213855740), (4, 160391805), (5, 128313444), (6, 106927870), (7, 91652460), (10, 64156722), (12, 53463935), (14, 45826230), (15, 42771148), (20, 32078361), (21, 30550820), (28, 22913115), (30, 21385574), (35, 18330492), (42, 15275410), (60, 10692787), (70, 9165246), (84, 7637705), (105, 6110164), (140, 4582623), (210, 3055082), (420, 1527541)]