22587500

素因数分解:

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

素因数の和:181

約数の個数: 72

約数和(自身を含む): 53590320

約数和(自身を除く): 31002820

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, 625, 650, 695, 1250, 1300, 1390, 1625, 1807, 2500, 2780, 3125, 3250, 3475, 3614, 6250, 6500, 6950, 7228, 8125, 9035, 12500, 13900, 16250, 17375, 18070, 32500, 34750, 36140, 40625, 45175, 69500, 81250, 86875, 90350, 162500, 173750, 180700, 225875, 347500, 434375, 451750, 868750, 903500, 1129375, 1737500, 2258750, 4517500, 5646875, 11293750, 22587500]

約数ペア:

[(1, 22587500), (2, 11293750), (4, 5646875), (5, 4517500), (10, 2258750), (13, 1737500), (20, 1129375), (25, 903500), (26, 868750), (50, 451750), (52, 434375), (65, 347500), (100, 225875), (125, 180700), (130, 173750), (139, 162500), (250, 90350), (260, 86875), (278, 81250), (325, 69500), (500, 45175), (556, 40625), (625, 36140), (650, 34750), (695, 32500), (1250, 18070), (1300, 17375), (1390, 16250), (1625, 13900), (1807, 12500), (2500, 9035), (2780, 8125), (3125, 7228), (3250, 6950), (3475, 6500), (3614, 6250)]