320980190

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{4357}}^1$

素因数の和:4556

約数の個数: 32

約数和(自身を含む): 593036640

約数和(自身を除く): 272056450

約数列:

[1, 2, 5, 10, 53, 106, 139, 265, 278, 530, 695, 1390, 4357, 7367, 8714, 14734, 21785, 36835, 43570, 73670, 230921, 461842, 605623, 1154605, 1211246, 2309210, 3028115, 6056230, 32098019, 64196038, 160490095, 320980190]

約数ペア:

[(1, 320980190), (2, 160490095), (5, 64196038), (10, 32098019), (53, 6056230), (106, 3028115), (139, 2309210), (265, 1211246), (278, 1154605), (530, 605623), (695, 461842), (1390, 230921), (4357, 73670), (7367, 43570), (8714, 36835), (14734, 21785)]