20940570

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{773}}^1$

素因数の和:836

約数の個数: 96

約数和(自身を含む): 63752832

約数和(自身を除く): 42812262

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 43, 45, 63, 70, 86, 90, 105, 126, 129, 210, 215, 258, 301, 315, 387, 430, 602, 630, 645, 773, 774, 903, 1290, 1505, 1546, 1806, 1935, 2319, 2709, 3010, 3865, 3870, 4515, 4638, 5411, 5418, 6957, 7730, 9030, 10822, 11595, 13545, 13914, 16233, 23190, 27055, 27090, 32466, 33239, 34785, 48699, 54110, 66478, 69570, 81165, 97398, 99717, 162330, 166195, 199434, 232673, 243495, 299151, 332390, 465346, 486990, 498585, 598302, 698019, 997170, 1163365, 1396038, 1495755, 2094057, 2326730, 2991510, 3490095, 4188114, 6980190, 10470285, 20940570]

約数ペア:

[(1, 20940570), (2, 10470285), (3, 6980190), (5, 4188114), (6, 3490095), (7, 2991510), (9, 2326730), (10, 2094057), (14, 1495755), (15, 1396038), (18, 1163365), (21, 997170), (30, 698019), (35, 598302), (42, 498585), (43, 486990), (45, 465346), (63, 332390), (70, 299151), (86, 243495), (90, 232673), (105, 199434), (126, 166195), (129, 162330), (210, 99717), (215, 97398), (258, 81165), (301, 69570), (315, 66478), (387, 54110), (430, 48699), (602, 34785), (630, 33239), (645, 32466), (773, 27090), (774, 27055), (903, 23190), (1290, 16233), (1505, 13914), (1546, 13545), (1806, 11595), (1935, 10822), (2319, 9030), (2709, 7730), (3010, 6957), (3865, 5418), (3870, 5411), (4515, 4638)]