247884680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{4649}}^1$

素因数の和:4734

約数の個数: 64

約数和(自身を含む): 589248000

約数和(自身を除く): 341363320

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, 4649, 5332, 6665, 9298, 10664, 13330, 18596, 23245, 26660, 37192, 46490, 53320, 92980, 144119, 185960, 199907, 288238, 399814, 576476, 720595, 799628, 999535, 1152952, 1441190, 1599256, 1999070, 2882380, 3998140, 5764760, 6197117, 7996280, 12394234, 24788468, 30985585, 49576936, 61971170, 123942340, 247884680]

約数ペア:

[(1, 247884680), (2, 123942340), (4, 61971170), (5, 49576936), (8, 30985585), (10, 24788468), (20, 12394234), (31, 7996280), (40, 6197117), (43, 5764760), (62, 3998140), (86, 2882380), (124, 1999070), (155, 1599256), (172, 1441190), (215, 1152952), (248, 999535), (310, 799628), (344, 720595), (430, 576476), (620, 399814), (860, 288238), (1240, 199907), (1333, 185960), (1720, 144119), (2666, 92980), (4649, 53320), (5332, 46490), (6665, 37192), (9298, 26660), (10664, 23245), (13330, 18596)]