90878140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{307}}^1$

素因数の和:395

約数の個数: 72

約数和(自身を含む): 207001872

約数和(自身を除く): 116123732

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 307, 361, 380, 410, 614, 722, 779, 820, 1228, 1444, 1535, 1558, 1805, 3070, 3116, 3610, 3895, 5833, 6140, 7220, 7790, 11666, 12587, 14801, 15580, 23332, 25174, 29165, 29602, 50348, 58330, 59204, 62935, 74005, 110827, 116660, 125870, 148010, 221654, 239153, 251740, 296020, 443308, 478306, 554135, 956612, 1108270, 1195765, 2216540, 2391530, 4543907, 4783060, 9087814, 18175628, 22719535, 45439070, 90878140]

約数ペア:

[(1, 90878140), (2, 45439070), (4, 22719535), (5, 18175628), (10, 9087814), (19, 4783060), (20, 4543907), (38, 2391530), (41, 2216540), (76, 1195765), (82, 1108270), (95, 956612), (164, 554135), (190, 478306), (205, 443308), (307, 296020), (361, 251740), (380, 239153), (410, 221654), (614, 148010), (722, 125870), (779, 116660), (820, 110827), (1228, 74005), (1444, 62935), (1535, 59204), (1558, 58330), (1805, 50348), (3070, 29602), (3116, 29165), (3610, 25174), (3895, 23332), (5833, 15580), (6140, 14801), (7220, 12587), (7790, 11666)]