25021220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{571}}^1$

素因数の和:900

約数の個数: 48

約数和(自身を含む): 60348288

約数和(自身を除く): 35327068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 313, 571, 626, 1142, 1252, 1565, 2191, 2284, 2855, 3130, 3997, 4382, 5710, 6260, 7994, 8764, 10955, 11420, 15988, 19985, 21910, 39970, 43820, 79940, 178723, 357446, 714892, 893615, 1251061, 1787230, 2502122, 3574460, 5004244, 6255305, 12510610, 25021220]

約数ペア:

[(1, 25021220), (2, 12510610), (4, 6255305), (5, 5004244), (7, 3574460), (10, 2502122), (14, 1787230), (20, 1251061), (28, 893615), (35, 714892), (70, 357446), (140, 178723), (313, 79940), (571, 43820), (626, 39970), (1142, 21910), (1252, 19985), (1565, 15988), (2191, 11420), (2284, 10955), (2855, 8764), (3130, 7994), (3997, 6260), (4382, 5710)]