18640568

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{3343}}^1$

素因数の和:3407

約数の個数: 32

約数和(自身を含む): 37920960

約数和(自身を除く): 19280392

約数列:

[1, 2, 4, 8, 17, 34, 41, 68, 82, 136, 164, 328, 697, 1394, 2788, 3343, 5576, 6686, 13372, 26744, 56831, 113662, 137063, 227324, 274126, 454648, 548252, 1096504, 2330071, 4660142, 9320284, 18640568]

約数ペア:

[(1, 18640568), (2, 9320284), (4, 4660142), (8, 2330071), (17, 1096504), (34, 548252), (41, 454648), (68, 274126), (82, 227324), (136, 137063), (164, 113662), (328, 56831), (697, 26744), (1394, 13372), (2788, 6686), (3343, 5576)]