12829700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:237

約数の個数: 72

約数和(自身を含む): 30623040

約数和(自身を除く): 17793340

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 71, 100, 130, 139, 142, 260, 278, 284, 325, 355, 556, 650, 695, 710, 923, 1300, 1390, 1420, 1775, 1807, 1846, 2780, 3475, 3550, 3614, 3692, 4615, 6950, 7100, 7228, 9035, 9230, 9869, 13900, 18070, 18460, 19738, 23075, 36140, 39476, 45175, 46150, 49345, 90350, 92300, 98690, 128297, 180700, 197380, 246725, 256594, 493450, 513188, 641485, 986900, 1282970, 2565940, 3207425, 6414850, 12829700]

約数ペア:

[(1, 12829700), (2, 6414850), (4, 3207425), (5, 2565940), (10, 1282970), (13, 986900), (20, 641485), (25, 513188), (26, 493450), (50, 256594), (52, 246725), (65, 197380), (71, 180700), (100, 128297), (130, 98690), (139, 92300), (142, 90350), (260, 49345), (278, 46150), (284, 45175), (325, 39476), (355, 36140), (556, 23075), (650, 19738), (695, 18460), (710, 18070), (923, 13900), (1300, 9869), (1390, 9230), (1420, 9035), (1775, 7228), (1807, 7100), (1846, 6950), (2780, 4615), (3475, 3692), (3550, 3614)]