163989380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{13921}}^1$

素因数の和:13980

約数の個数: 48

約数和(自身を含む): 374223360

約数和(自身を除く): 210233980

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 2356, 2945, 5890, 11780, 13921, 27842, 55684, 69605, 139210, 264499, 278420, 431551, 528998, 863102, 1057996, 1322495, 1726204, 2157755, 2644990, 4315510, 5289980, 8199469, 8631020, 16398938, 32797876, 40997345, 81994690, 163989380]

約数ペア:

[(1, 163989380), (2, 81994690), (4, 40997345), (5, 32797876), (10, 16398938), (19, 8631020), (20, 8199469), (31, 5289980), (38, 4315510), (62, 2644990), (76, 2157755), (95, 1726204), (124, 1322495), (155, 1057996), (190, 863102), (310, 528998), (380, 431551), (589, 278420), (620, 264499), (1178, 139210), (2356, 69605), (2945, 55684), (5890, 27842), (11780, 13921)]