81464566960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2129}}^1\times {\mathrm{68329}}^1$

素因数の和:70478

約数の個数: 80

約数和(自身を含む): 216567835200

約数和(自身を除く): 135103268240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2129, 4258, 8516, 10645, 14903, 17032, 21290, 29806, 34064, 42580, 59612, 68329, 74515, 85160, 119224, 136658, 149030, 170320, 238448, 273316, 298060, 341645, 478303, 546632, 596120, 683290, 956606, 1093264, 1192240, 1366580, 1913212, 2391515, 2733160, 3826424, 4783030, 5466320, 7652848, 9566060, 19132120, 38264240, 145472441, 290944882, 581889764, 727362205, 1018307087, 1163779528, 1454724410, 2036614174, 2327559056, 2909448820, 4073228348, 5091535435, 5818897640, 8146456696, 10183070870, 11637795280, 16292913392, 20366141740, 40732283480, 81464566960]

約数ペア:

[(1, 81464566960), (2, 40732283480), (4, 20366141740), (5, 16292913392), (7, 11637795280), (8, 10183070870), (10, 8146456696), (14, 5818897640), (16, 5091535435), (20, 4073228348), (28, 2909448820), (35, 2327559056), (40, 2036614174), (56, 1454724410), (70, 1163779528), (80, 1018307087), (112, 727362205), (140, 581889764), (280, 290944882), (560, 145472441), (2129, 38264240), (4258, 19132120), (8516, 9566060), (10645, 7652848), (14903, 5466320), (17032, 4783030), (21290, 3826424), (29806, 2733160), (34064, 2391515), (42580, 1913212), (59612, 1366580), (68329, 1192240), (74515, 1093264), (85160, 956606), (119224, 683290), (136658, 596120), (149030, 546632), (170320, 478303), (238448, 341645), (273316, 298060)]