20776860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{683}}^1$

素因数の和:724

約数の個数: 108

約数和(自身を含む): 68343912

約数和(自身を除く): 47567052

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 169, 180, 195, 234, 260, 338, 390, 468, 507, 585, 676, 683, 780, 845, 1014, 1170, 1366, 1521, 1690, 2028, 2049, 2340, 2535, 2732, 3042, 3380, 3415, 4098, 5070, 6084, 6147, 6830, 7605, 8196, 8879, 10140, 10245, 12294, 13660, 15210, 17758, 20490, 24588, 26637, 30420, 30735, 35516, 40980, 44395, 53274, 61470, 79911, 88790, 106548, 115427, 122940, 133185, 159822, 177580, 230854, 266370, 319644, 346281, 399555, 461708, 532740, 577135, 692562, 799110, 1038843, 1154270, 1385124, 1598220, 1731405, 2077686, 2308540, 3462810, 4155372, 5194215, 6925620, 10388430, 20776860]

約数ペア:

[(1, 20776860), (2, 10388430), (3, 6925620), (4, 5194215), (5, 4155372), (6, 3462810), (9, 2308540), (10, 2077686), (12, 1731405), (13, 1598220), (15, 1385124), (18, 1154270), (20, 1038843), (26, 799110), (30, 692562), (36, 577135), (39, 532740), (45, 461708), (52, 399555), (60, 346281), (65, 319644), (78, 266370), (90, 230854), (117, 177580), (130, 159822), (156, 133185), (169, 122940), (180, 115427), (195, 106548), (234, 88790), (260, 79911), (338, 61470), (390, 53274), (468, 44395), (507, 40980), (585, 35516), (676, 30735), (683, 30420), (780, 26637), (845, 24588), (1014, 20490), (1170, 17758), (1366, 15210), (1521, 13660), (1690, 12294), (2028, 10245), (2049, 10140), (2340, 8879), (2535, 8196), (2732, 7605), (3042, 6830), (3380, 6147), (3415, 6084), (4098, 5070)]