21370160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1231}}^1$

素因数の和:1282

約数の個数: 80

約数和(自身を含む): 58662912

約数和(自身を除く): 37292752

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1231, 1240, 1736, 2170, 2462, 2480, 3472, 4340, 4924, 6155, 8617, 8680, 9848, 12310, 17234, 17360, 19696, 24620, 34468, 38161, 43085, 49240, 68936, 76322, 86170, 98480, 137872, 152644, 172340, 190805, 267127, 305288, 344680, 381610, 534254, 610576, 689360, 763220, 1068508, 1335635, 1526440, 2137016, 2671270, 3052880, 4274032, 5342540, 10685080, 21370160]

約数ペア:

[(1, 21370160), (2, 10685080), (4, 5342540), (5, 4274032), (7, 3052880), (8, 2671270), (10, 2137016), (14, 1526440), (16, 1335635), (20, 1068508), (28, 763220), (31, 689360), (35, 610576), (40, 534254), (56, 381610), (62, 344680), (70, 305288), (80, 267127), (112, 190805), (124, 172340), (140, 152644), (155, 137872), (217, 98480), (248, 86170), (280, 76322), (310, 68936), (434, 49240), (496, 43085), (560, 38161), (620, 34468), (868, 24620), (1085, 19696), (1231, 17360), (1240, 17234), (1736, 12310), (2170, 9848), (2462, 8680), (2480, 8617), (3472, 6155), (4340, 4924)]