81221700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{38677}}^1$

素因数の和:38701

約数の個数: 72

約数和(自身を含む): 268580032

約数和(自身を除く): 187358332

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 38677, 77354, 116031, 154708, 193385, 232062, 270739, 386770, 464124, 541478, 580155, 773540, 812217, 966925, 1082956, 1160310, 1353695, 1624434, 1933850, 2320620, 2707390, 2900775, 3248868, 3867700, 4061085, 5414780, 5801550, 6768475, 8122170, 11603100, 13536950, 16244340, 20305425, 27073900, 40610850, 81221700]

約数ペア:

[(1, 81221700), (2, 40610850), (3, 27073900), (4, 20305425), (5, 16244340), (6, 13536950), (7, 11603100), (10, 8122170), (12, 6768475), (14, 5801550), (15, 5414780), (20, 4061085), (21, 3867700), (25, 3248868), (28, 2900775), (30, 2707390), (35, 2320620), (42, 1933850), (50, 1624434), (60, 1353695), (70, 1160310), (75, 1082956), (84, 966925), (100, 812217), (105, 773540), (140, 580155), (150, 541478), (175, 464124), (210, 386770), (300, 270739), (350, 232062), (420, 193385), (525, 154708), (700, 116031), (1050, 77354), (2100, 38677)]