18878161716

素因数分解:

$2^2\times 3^2\times {\mathrm{181}}^1\times {\mathrm{227}}^1\times {\mathrm{12763}}^1$

素因数の和:13181

約数の個数: 72

約数和(自身を含む): 48198599904

約数和(自身を除く): 29320438188

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 181, 227, 362, 454, 543, 681, 724, 908, 1086, 1362, 1629, 2043, 2172, 2724, 3258, 4086, 6516, 8172, 12763, 25526, 38289, 41087, 51052, 76578, 82174, 114867, 123261, 153156, 164348, 229734, 246522, 369783, 459468, 493044, 739566, 1479132, 2310103, 2897201, 4620206, 5794402, 6930309, 8691603, 9240412, 11588804, 13860618, 17383206, 20790927, 26074809, 27721236, 34766412, 41581854, 52149618, 83163708, 104299236, 524393381, 1048786762, 1573180143, 2097573524, 3146360286, 4719540429, 6292720572, 9439080858, 18878161716]

約数ペア:

[(1, 18878161716), (2, 9439080858), (3, 6292720572), (4, 4719540429), (6, 3146360286), (9, 2097573524), (12, 1573180143), (18, 1048786762), (36, 524393381), (181, 104299236), (227, 83163708), (362, 52149618), (454, 41581854), (543, 34766412), (681, 27721236), (724, 26074809), (908, 20790927), (1086, 17383206), (1362, 13860618), (1629, 11588804), (2043, 9240412), (2172, 8691603), (2724, 6930309), (3258, 5794402), (4086, 4620206), (6516, 2897201), (8172, 2310103), (12763, 1479132), (25526, 739566), (38289, 493044), (41087, 459468), (51052, 369783), (76578, 246522), (82174, 229734), (114867, 164348), (123261, 153156)]