20045556

素因数分解:

$2^2\times 3^5\times {\mathrm{41}}^1\times {\mathrm{503}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 53936064

約数和(自身を除く): 33890508

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 41, 54, 81, 82, 108, 123, 162, 164, 243, 246, 324, 369, 486, 492, 503, 738, 972, 1006, 1107, 1476, 1509, 2012, 2214, 3018, 3321, 4428, 4527, 6036, 6642, 9054, 9963, 13284, 13581, 18108, 19926, 20623, 27162, 39852, 40743, 41246, 54324, 61869, 81486, 82492, 122229, 123738, 162972, 185607, 244458, 247476, 371214, 488916, 556821, 742428, 1113642, 1670463, 2227284, 3340926, 5011389, 6681852, 10022778, 20045556]

約数ペア:

[(1, 20045556), (2, 10022778), (3, 6681852), (4, 5011389), (6, 3340926), (9, 2227284), (12, 1670463), (18, 1113642), (27, 742428), (36, 556821), (41, 488916), (54, 371214), (81, 247476), (82, 244458), (108, 185607), (123, 162972), (162, 123738), (164, 122229), (243, 82492), (246, 81486), (324, 61869), (369, 54324), (486, 41246), (492, 40743), (503, 39852), (738, 27162), (972, 20623), (1006, 19926), (1107, 18108), (1476, 13581), (1509, 13284), (2012, 9963), (2214, 9054), (3018, 6642), (3321, 6036), (4428, 4527)]