28207740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{541}}^1$

素因数の和:643

約数の個数: 96

約数和(自身を含む): 87413760

約数和(自身を除く): 59206020

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 79, 110, 132, 158, 165, 220, 237, 316, 330, 395, 474, 541, 660, 790, 869, 948, 1082, 1185, 1580, 1623, 1738, 2164, 2370, 2607, 2705, 3246, 3476, 4345, 4740, 5214, 5410, 5951, 6492, 8115, 8690, 10428, 10820, 11902, 13035, 16230, 17380, 17853, 23804, 26070, 29755, 32460, 35706, 42739, 52140, 59510, 71412, 85478, 89265, 119020, 128217, 170956, 178530, 213695, 256434, 357060, 427390, 470129, 512868, 641085, 854780, 940258, 1282170, 1410387, 1880516, 2350645, 2564340, 2820774, 4701290, 5641548, 7051935, 9402580, 14103870, 28207740]

約数ペア:

[(1, 28207740), (2, 14103870), (3, 9402580), (4, 7051935), (5, 5641548), (6, 4701290), (10, 2820774), (11, 2564340), (12, 2350645), (15, 1880516), (20, 1410387), (22, 1282170), (30, 940258), (33, 854780), (44, 641085), (55, 512868), (60, 470129), (66, 427390), (79, 357060), (110, 256434), (132, 213695), (158, 178530), (165, 170956), (220, 128217), (237, 119020), (316, 89265), (330, 85478), (395, 71412), (474, 59510), (541, 52140), (660, 42739), (790, 35706), (869, 32460), (948, 29755), (1082, 26070), (1185, 23804), (1580, 17853), (1623, 17380), (1738, 16230), (2164, 13035), (2370, 11902), (2607, 10820), (2705, 10428), (3246, 8690), (3476, 8115), (4345, 6492), (4740, 5951), (5214, 5410)]