205122040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{3847}}^1$

素因数の和:3932

約数の個数: 64

約数和(自身を含む): 487618560

約数和(自身を除く): 282496520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 248, 310, 344, 430, 620, 860, 1240, 1333, 1720, 2666, 3847, 5332, 6665, 7694, 10664, 13330, 15388, 19235, 26660, 30776, 38470, 53320, 76940, 119257, 153880, 165421, 238514, 330842, 477028, 596285, 661684, 827105, 954056, 1192570, 1323368, 1654210, 2385140, 3308420, 4770280, 5128051, 6616840, 10256102, 20512204, 25640255, 41024408, 51280510, 102561020, 205122040]

約数ペア:

[(1, 205122040), (2, 102561020), (4, 51280510), (5, 41024408), (8, 25640255), (10, 20512204), (20, 10256102), (31, 6616840), (40, 5128051), (43, 4770280), (62, 3308420), (86, 2385140), (124, 1654210), (155, 1323368), (172, 1192570), (215, 954056), (248, 827105), (310, 661684), (344, 596285), (430, 477028), (620, 330842), (860, 238514), (1240, 165421), (1333, 153880), (1720, 119257), (2666, 76940), (3847, 53320), (5332, 38470), (6665, 30776), (7694, 26660), (10664, 19235), (13330, 15388)]