9728890

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:498

約数の個数: 32

約数和(自身を含む): 18280080

約数和(自身を除く): 8551190

約数列:

[1, 2, 5, 10, 41, 61, 82, 122, 205, 305, 389, 410, 610, 778, 1945, 2501, 3890, 5002, 12505, 15949, 23729, 25010, 31898, 47458, 79745, 118645, 159490, 237290, 972889, 1945778, 4864445, 9728890]

約数ペア:

[(1, 9728890), (2, 4864445), (5, 1945778), (10, 972889), (41, 237290), (61, 159490), (82, 118645), (122, 79745), (205, 47458), (305, 31898), (389, 25010), (410, 23729), (610, 15949), (778, 12505), (1945, 5002), (2501, 3890)]