261301480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{19157}}^1$

素因数の和:19210

約数の個数: 64

約数和(自身を含む): 662100480

約数和(自身を除く): 400799000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 6820, 13640, 19157, 38314, 76628, 95785, 153256, 191570, 210727, 383140, 421454, 593867, 766280, 842908, 1053635, 1187734, 1685816, 2107270, 2375468, 2969335, 4214540, 4750936, 5938670, 6532537, 8429080, 11877340, 13065074, 23754680, 26130148, 32662685, 52260296, 65325370, 130650740, 261301480]

約数ペア:

[(1, 261301480), (2, 130650740), (4, 65325370), (5, 52260296), (8, 32662685), (10, 26130148), (11, 23754680), (20, 13065074), (22, 11877340), (31, 8429080), (40, 6532537), (44, 5938670), (55, 4750936), (62, 4214540), (88, 2969335), (110, 2375468), (124, 2107270), (155, 1685816), (220, 1187734), (248, 1053635), (310, 842908), (341, 766280), (440, 593867), (620, 421454), (682, 383140), (1240, 210727), (1364, 191570), (1705, 153256), (2728, 95785), (3410, 76628), (6820, 38314), (13640, 19157)]