20429472

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:171

約数の個数: 144

約数和(自身を含む): 64465632

約数和(自身を除く): 44036160

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 43, 48, 49, 56, 84, 86, 96, 98, 101, 112, 129, 147, 168, 172, 196, 202, 224, 258, 294, 301, 303, 336, 344, 392, 404, 516, 588, 602, 606, 672, 688, 707, 784, 808, 903, 1032, 1176, 1204, 1212, 1376, 1414, 1568, 1616, 1806, 2064, 2107, 2121, 2352, 2408, 2424, 2828, 3232, 3612, 4128, 4214, 4242, 4343, 4704, 4816, 4848, 4949, 5656, 6321, 7224, 8428, 8484, 8686, 9632, 9696, 9898, 11312, 12642, 13029, 14448, 14847, 16856, 16968, 17372, 19796, 22624, 25284, 26058, 28896, 29694, 30401, 33712, 33936, 34744, 39592, 50568, 52116, 59388, 60802, 67424, 67872, 69488, 79184, 91203, 101136, 104232, 118776, 121604, 138976, 158368, 182406, 202272, 208464, 212807, 237552, 243208, 364812, 416928, 425614, 475104, 486416, 638421, 729624, 851228, 972832, 1276842, 1459248, 1702456, 2553684, 2918496, 3404912, 5107368, 6809824, 10214736, 20429472]

約数ペア:

[(1, 20429472), (2, 10214736), (3, 6809824), (4, 5107368), (6, 3404912), (7, 2918496), (8, 2553684), (12, 1702456), (14, 1459248), (16, 1276842), (21, 972832), (24, 851228), (28, 729624), (32, 638421), (42, 486416), (43, 475104), (48, 425614), (49, 416928), (56, 364812), (84, 243208), (86, 237552), (96, 212807), (98, 208464), (101, 202272), (112, 182406), (129, 158368), (147, 138976), (168, 121604), (172, 118776), (196, 104232), (202, 101136), (224, 91203), (258, 79184), (294, 69488), (301, 67872), (303, 67424), (336, 60802), (344, 59388), (392, 52116), (404, 50568), (516, 39592), (588, 34744), (602, 33936), (606, 33712), (672, 30401), (688, 29694), (707, 28896), (784, 26058), (808, 25284), (903, 22624), (1032, 19796), (1176, 17372), (1204, 16968), (1212, 16856), (1376, 14847), (1414, 14448), (1568, 13029), (1616, 12642), (1806, 11312), (2064, 9898), (2107, 9696), (2121, 9632), (2352, 8686), (2408, 8484), (2424, 8428), (2828, 7224), (3232, 6321), (3612, 5656), (4128, 4949), (4214, 4848), (4242, 4816), (4343, 4704)]