388432760

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{4261}}^1$

素因数の和:4368

約数の個数: 64

約数和(自身を含む): 911386080

約数和(自身を除く): 522953320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 53, 86, 106, 172, 212, 215, 265, 344, 424, 430, 530, 860, 1060, 1720, 2120, 2279, 4261, 4558, 8522, 9116, 11395, 17044, 18232, 21305, 22790, 34088, 42610, 45580, 85220, 91160, 170440, 183223, 225833, 366446, 451666, 732892, 903332, 916115, 1129165, 1465784, 1806664, 1832230, 2258330, 3664460, 4516660, 7328920, 9033320, 9710819, 19421638, 38843276, 48554095, 77686552, 97108190, 194216380, 388432760]

約数ペア:

[(1, 388432760), (2, 194216380), (4, 97108190), (5, 77686552), (8, 48554095), (10, 38843276), (20, 19421638), (40, 9710819), (43, 9033320), (53, 7328920), (86, 4516660), (106, 3664460), (172, 2258330), (212, 1832230), (215, 1806664), (265, 1465784), (344, 1129165), (424, 916115), (430, 903332), (530, 732892), (860, 451666), (1060, 366446), (1720, 225833), (2120, 183223), (2279, 170440), (4261, 91160), (4558, 85220), (8522, 45580), (9116, 42610), (11395, 34088), (17044, 22790), (18232, 21305)]