903500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{139}}^1$

素因数の和:171

約数の個数: 48

約数和(自身を含む): 2140320

約数和(自身を除く): 1236820

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 139, 250, 260, 278, 325, 500, 556, 650, 695, 1300, 1390, 1625, 1807, 2780, 3250, 3475, 3614, 6500, 6950, 7228, 9035, 13900, 17375, 18070, 34750, 36140, 45175, 69500, 90350, 180700, 225875, 451750, 903500]

約数ペア:

[(1, 903500), (2, 451750), (4, 225875), (5, 180700), (10, 90350), (13, 69500), (20, 45175), (25, 36140), (26, 34750), (50, 18070), (52, 17375), (65, 13900), (100, 9035), (125, 7228), (130, 6950), (139, 6500), (250, 3614), (260, 3475), (278, 3250), (325, 2780), (500, 1807), (556, 1625), (650, 1390), (695, 1300)]