20439984

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{677}}^1$

素因数の和:742

約数の個数: 80

約数和(自身を含む): 57505248

約数和(自身を除く): 37065264

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 37, 48, 51, 68, 74, 102, 111, 136, 148, 204, 222, 272, 296, 408, 444, 592, 629, 677, 816, 888, 1258, 1354, 1776, 1887, 2031, 2516, 2708, 3774, 4062, 5032, 5416, 7548, 8124, 10064, 10832, 11509, 15096, 16248, 23018, 25049, 30192, 32496, 34527, 46036, 50098, 69054, 75147, 92072, 100196, 138108, 150294, 184144, 200392, 276216, 300588, 400784, 425833, 552432, 601176, 851666, 1202352, 1277499, 1703332, 2554998, 3406664, 5109996, 6813328, 10219992, 20439984]

約数ペア:

[(1, 20439984), (2, 10219992), (3, 6813328), (4, 5109996), (6, 3406664), (8, 2554998), (12, 1703332), (16, 1277499), (17, 1202352), (24, 851666), (34, 601176), (37, 552432), (48, 425833), (51, 400784), (68, 300588), (74, 276216), (102, 200392), (111, 184144), (136, 150294), (148, 138108), (204, 100196), (222, 92072), (272, 75147), (296, 69054), (408, 50098), (444, 46036), (592, 34527), (629, 32496), (677, 30192), (816, 25049), (888, 23018), (1258, 16248), (1354, 15096), (1776, 11509), (1887, 10832), (2031, 10064), (2516, 8124), (2708, 7548), (3774, 5416), (4062, 5032)]