172985220

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{106781}}^1$

素因数の和:106802

約数の個数: 60

約数和(自身を含む): 542666124

約数和(自身を除く): 369680904

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, 270, 324, 405, 540, 810, 1620, 106781, 213562, 320343, 427124, 533905, 640686, 961029, 1067810, 1281372, 1601715, 1922058, 2135620, 2883087, 3203430, 3844116, 4805145, 5766174, 6406860, 8649261, 9610290, 11532348, 14415435, 17298522, 19220580, 28830870, 34597044, 43246305, 57661740, 86492610, 172985220]

約数ペア:

[(1, 172985220), (2, 86492610), (3, 57661740), (4, 43246305), (5, 34597044), (6, 28830870), (9, 19220580), (10, 17298522), (12, 14415435), (15, 11532348), (18, 9610290), (20, 8649261), (27, 6406860), (30, 5766174), (36, 4805145), (45, 3844116), (54, 3203430), (60, 2883087), (81, 2135620), (90, 1922058), (108, 1601715), (135, 1281372), (162, 1067810), (180, 961029), (270, 640686), (324, 533905), (405, 427124), (540, 320343), (810, 213562), (1620, 106781)]