20543220

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{1409}}^1$

素因数の和:1436

約数の個数: 84

約数和(自身を含む): 64727460

約数和(自身を除く): 44184240

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 729, 810, 972, 1215, 1409, 1458, 1620, 2430, 2818, 2916, 3645, 4227, 4860, 5636, 7045, 7290, 8454, 12681, 14090, 14580, 16908, 21135, 25362, 28180, 38043, 42270, 50724, 63405, 76086, 84540, 114129, 126810, 152172, 190215, 228258, 253620, 342387, 380430, 456516, 570645, 684774, 760860, 1027161, 1141290, 1369548, 1711935, 2054322, 2282580, 3423870, 4108644, 5135805, 6847740, 10271610, 20543220]

約数ペア:

[(1, 20543220), (2, 10271610), (3, 6847740), (4, 5135805), (5, 4108644), (6, 3423870), (9, 2282580), (10, 2054322), (12, 1711935), (15, 1369548), (18, 1141290), (20, 1027161), (27, 760860), (30, 684774), (36, 570645), (45, 456516), (54, 380430), (60, 342387), (81, 253620), (90, 228258), (108, 190215), (135, 152172), (162, 126810), (180, 114129), (243, 84540), (270, 76086), (324, 63405), (405, 50724), (486, 42270), (540, 38043), (729, 28180), (810, 25362), (972, 21135), (1215, 16908), (1409, 14580), (1458, 14090), (1620, 12681), (2430, 8454), (2818, 7290), (2916, 7045), (3645, 5636), (4227, 4860)]