18861660

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{3881}}^1$

素因数の和:3905

約数の個数: 72

約数和(自身を含む): 59348016

約数和(自身を除く): 40486356

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, 810, 972, 1215, 1620, 2430, 3881, 4860, 7762, 11643, 15524, 19405, 23286, 34929, 38810, 46572, 58215, 69858, 77620, 104787, 116430, 139716, 174645, 209574, 232860, 314361, 349290, 419148, 523935, 628722, 698580, 943083, 1047870, 1257444, 1571805, 1886166, 2095740, 3143610, 3772332, 4715415, 6287220, 9430830, 18861660]

約数ペア:

[(1, 18861660), (2, 9430830), (3, 6287220), (4, 4715415), (5, 3772332), (6, 3143610), (9, 2095740), (10, 1886166), (12, 1571805), (15, 1257444), (18, 1047870), (20, 943083), (27, 698580), (30, 628722), (36, 523935), (45, 419148), (54, 349290), (60, 314361), (81, 232860), (90, 209574), (108, 174645), (135, 139716), (162, 116430), (180, 104787), (243, 77620), (270, 69858), (324, 58215), (405, 46572), (486, 38810), (540, 34929), (810, 23286), (972, 19405), (1215, 15524), (1620, 11643), (2430, 7762), (3881, 4860)]