81577160

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41621}}^1$

素因数の和:41646

約数の個数: 48

約数和(自身を含む): 213520860

約数和(自身を除く): 131943700

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 41621, 83242, 166484, 208105, 291347, 332968, 416210, 582694, 832420, 1165388, 1456735, 1664840, 2039429, 2330776, 2913470, 4078858, 5826940, 8157716, 10197145, 11653880, 16315432, 20394290, 40788580, 81577160]

約数ペア:

[(1, 81577160), (2, 40788580), (4, 20394290), (5, 16315432), (7, 11653880), (8, 10197145), (10, 8157716), (14, 5826940), (20, 4078858), (28, 2913470), (35, 2330776), (40, 2039429), (49, 1664840), (56, 1456735), (70, 1165388), (98, 832420), (140, 582694), (196, 416210), (245, 332968), (280, 291347), (392, 208105), (490, 166484), (980, 83242), (1960, 41621)]