28357140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{631}}^1$

素因数の和:757

約数の個数: 96

約数和(自身を含む): 91736064

約数和(自身を除く): 63378924

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 107, 140, 210, 214, 321, 420, 428, 535, 631, 642, 749, 1070, 1262, 1284, 1498, 1605, 1893, 2140, 2247, 2524, 2996, 3155, 3210, 3745, 3786, 4417, 4494, 6310, 6420, 7490, 7572, 8834, 8988, 9465, 11235, 12620, 13251, 14980, 17668, 18930, 22085, 22470, 26502, 37860, 44170, 44940, 53004, 66255, 67517, 88340, 132510, 135034, 202551, 265020, 270068, 337585, 405102, 472619, 675170, 810204, 945238, 1012755, 1350340, 1417857, 1890476, 2025510, 2363095, 2835714, 4051020, 4726190, 5671428, 7089285, 9452380, 14178570, 28357140]

約数ペア:

[(1, 28357140), (2, 14178570), (3, 9452380), (4, 7089285), (5, 5671428), (6, 4726190), (7, 4051020), (10, 2835714), (12, 2363095), (14, 2025510), (15, 1890476), (20, 1417857), (21, 1350340), (28, 1012755), (30, 945238), (35, 810204), (42, 675170), (60, 472619), (70, 405102), (84, 337585), (105, 270068), (107, 265020), (140, 202551), (210, 135034), (214, 132510), (321, 88340), (420, 67517), (428, 66255), (535, 53004), (631, 44940), (642, 44170), (749, 37860), (1070, 26502), (1262, 22470), (1284, 22085), (1498, 18930), (1605, 17668), (1893, 14980), (2140, 13251), (2247, 12620), (2524, 11235), (2996, 9465), (3155, 8988), (3210, 8834), (3745, 7572), (3786, 7490), (4417, 6420), (4494, 6310)]