158678420

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{263}}^1\times {\mathrm{311}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 339026688

約数和(自身を除く): 180348268

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 263, 311, 388, 485, 526, 622, 970, 1052, 1244, 1315, 1555, 1940, 2630, 3110, 5260, 6220, 25511, 30167, 51022, 60334, 81793, 102044, 120668, 127555, 150835, 163586, 255110, 301670, 327172, 408965, 510220, 603340, 817930, 1635860, 7933921, 15867842, 31735684, 39669605, 79339210, 158678420]

約数ペア:

[(1, 158678420), (2, 79339210), (4, 39669605), (5, 31735684), (10, 15867842), (20, 7933921), (97, 1635860), (194, 817930), (263, 603340), (311, 510220), (388, 408965), (485, 327172), (526, 301670), (622, 255110), (970, 163586), (1052, 150835), (1244, 127555), (1315, 120668), (1555, 102044), (1940, 81793), (2630, 60334), (3110, 51022), (5260, 30167), (6220, 25511)]