253236520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1\times {\mathrm{461}}^1$

素因数の和:946

約数の個数: 64

約数和(自身を含む): 590768640

約数和(自身を除く): 337532120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 443, 461, 620, 886, 922, 1240, 1772, 1844, 2215, 2305, 3544, 3688, 4430, 4610, 8860, 9220, 13733, 14291, 17720, 18440, 27466, 28582, 54932, 57164, 68665, 71455, 109864, 114328, 137330, 142910, 204223, 274660, 285820, 408446, 549320, 571640, 816892, 1021115, 1633784, 2042230, 4084460, 6330913, 8168920, 12661826, 25323652, 31654565, 50647304, 63309130, 126618260, 253236520]

約数ペア:

[(1, 253236520), (2, 126618260), (4, 63309130), (5, 50647304), (8, 31654565), (10, 25323652), (20, 12661826), (31, 8168920), (40, 6330913), (62, 4084460), (124, 2042230), (155, 1633784), (248, 1021115), (310, 816892), (443, 571640), (461, 549320), (620, 408446), (886, 285820), (922, 274660), (1240, 204223), (1772, 142910), (1844, 137330), (2215, 114328), (2305, 109864), (3544, 71455), (3688, 68665), (4430, 57164), (4610, 54932), (8860, 28582), (9220, 27466), (13733, 18440), (14291, 17720)]