256298360

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1\times {\mathrm{487}}^1$

素因数の和:780

約数の個数: 64

約数和(自身を含む): 590284800

約数和(自身を除く): 333986440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 223, 236, 295, 446, 472, 487, 590, 892, 974, 1115, 1180, 1784, 1948, 2230, 2360, 2435, 3896, 4460, 4870, 8920, 9740, 13157, 19480, 26314, 28733, 52628, 57466, 65785, 105256, 108601, 114932, 131570, 143665, 217202, 229864, 263140, 287330, 434404, 526280, 543005, 574660, 868808, 1086010, 1149320, 2172020, 4344040, 6407459, 12814918, 25629836, 32037295, 51259672, 64074590, 128149180, 256298360]

約数ペア:

[(1, 256298360), (2, 128149180), (4, 64074590), (5, 51259672), (8, 32037295), (10, 25629836), (20, 12814918), (40, 6407459), (59, 4344040), (118, 2172020), (223, 1149320), (236, 1086010), (295, 868808), (446, 574660), (472, 543005), (487, 526280), (590, 434404), (892, 287330), (974, 263140), (1115, 229864), (1180, 217202), (1784, 143665), (1948, 131570), (2230, 114932), (2360, 108601), (2435, 105256), (3896, 65785), (4460, 57466), (4870, 52628), (8920, 28733), (9740, 26314), (13157, 19480)]