18279140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4373}}^1$

素因数の和:4412

約数の個数: 48

約数和(自身を含む): 44089920

約数和(自身を除く): 25810780

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 4373, 8746, 17492, 21865, 43730, 48103, 83087, 87460, 96206, 166174, 192412, 240515, 332348, 415435, 481030, 830870, 913957, 962060, 1661740, 1827914, 3655828, 4569785, 9139570, 18279140]

約数ペア:

[(1, 18279140), (2, 9139570), (4, 4569785), (5, 3655828), (10, 1827914), (11, 1661740), (19, 962060), (20, 913957), (22, 830870), (38, 481030), (44, 415435), (55, 332348), (76, 240515), (95, 192412), (110, 166174), (190, 96206), (209, 87460), (220, 83087), (380, 48103), (418, 43730), (836, 21865), (1045, 17492), (2090, 8746), (4180, 4373)]