71845960

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{18517}}^1$

素因数の和:18625

約数の個数: 32

約数和(自身を含む): 163328760

約数和(自身を除く): 91482800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 18517, 37034, 74068, 92585, 148136, 185170, 370340, 740680, 1796149, 3592298, 7184596, 8980745, 14369192, 17961490, 35922980, 71845960]

約数ペア:

[(1, 71845960), (2, 35922980), (4, 17961490), (5, 14369192), (8, 8980745), (10, 7184596), (20, 3592298), (40, 1796149), (97, 740680), (194, 370340), (388, 185170), (485, 148136), (776, 92585), (970, 74068), (1940, 37034), (3880, 18517)]