12810979580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{228197}}^1$

素因数の和:228614

約数の個数: 48

約数和(自身を含む): 30823160256

約数和(自身を除く): 18012180676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 401, 802, 1604, 2005, 2807, 4010, 5614, 8020, 11228, 14035, 28070, 56140, 228197, 456394, 912788, 1140985, 1597379, 2281970, 3194758, 4563940, 6389516, 7986895, 15973790, 31947580, 91506997, 183013994, 366027988, 457534985, 640548979, 915069970, 1281097958, 1830139940, 2562195916, 3202744895, 6405489790, 12810979580]

約数ペア:

[(1, 12810979580), (2, 6405489790), (4, 3202744895), (5, 2562195916), (7, 1830139940), (10, 1281097958), (14, 915069970), (20, 640548979), (28, 457534985), (35, 366027988), (70, 183013994), (140, 91506997), (401, 31947580), (802, 15973790), (1604, 7986895), (2005, 6389516), (2807, 4563940), (4010, 3194758), (5614, 2281970), (8020, 1597379), (11228, 1140985), (14035, 912788), (28070, 456394), (56140, 228197)]