81204900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{38669}}^1$

素因数の和:38693

約数の個数: 72

約数和(自身を含む): 268524480

約数和(自身を除く): 187319580

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, 38669, 77338, 116007, 154676, 193345, 232014, 270683, 386690, 464028, 541366, 580035, 773380, 812049, 966725, 1082732, 1160070, 1353415, 1624098, 1933450, 2320140, 2706830, 2900175, 3248196, 3866900, 4060245, 5413660, 5800350, 6767075, 8120490, 11600700, 13534150, 16240980, 20301225, 27068300, 40602450, 81204900]

約数ペア:

[(1, 81204900), (2, 40602450), (3, 27068300), (4, 20301225), (5, 16240980), (6, 13534150), (7, 11600700), (10, 8120490), (12, 6767075), (14, 5800350), (15, 5413660), (20, 4060245), (21, 3866900), (25, 3248196), (28, 2900175), (30, 2706830), (35, 2320140), (42, 1933450), (50, 1624098), (60, 1353415), (70, 1160070), (75, 1082732), (84, 966725), (100, 812049), (105, 773380), (140, 580035), (150, 541366), (175, 464028), (210, 386690), (300, 270683), (350, 232014), (420, 193345), (525, 154676), (700, 116007), (1050, 77338), (2100, 38669)]