66867880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{45181}}^1$

素因数の和:45229

約数の個数: 32

約数和(自身を含む): 154522440

約数和(自身を除く): 87654560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 45181, 90362, 180724, 225905, 361448, 451810, 903620, 1671697, 1807240, 3343394, 6686788, 8358485, 13373576, 16716970, 33433940, 66867880]

約数ペア:

[(1, 66867880), (2, 33433940), (4, 16716970), (5, 13373576), (8, 8358485), (10, 6686788), (20, 3343394), (37, 1807240), (40, 1671697), (74, 903620), (148, 451810), (185, 361448), (296, 225905), (370, 180724), (740, 90362), (1480, 45181)]