64347780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{509}}^1$

素因数の和:578

約数の個数: 144

約数和(自身を含む): 214885440

約数和(自身を除く): 150537660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 49, 60, 70, 84, 86, 98, 105, 129, 140, 147, 172, 196, 210, 215, 245, 258, 294, 301, 420, 430, 490, 509, 516, 588, 602, 645, 735, 860, 903, 980, 1018, 1204, 1290, 1470, 1505, 1527, 1806, 2036, 2107, 2545, 2580, 2940, 3010, 3054, 3563, 3612, 4214, 4515, 5090, 6020, 6108, 6321, 7126, 7635, 8428, 9030, 10180, 10535, 10689, 12642, 14252, 15270, 17815, 18060, 21070, 21378, 21887, 24941, 25284, 30540, 31605, 35630, 42140, 42756, 43774, 49882, 53445, 63210, 65661, 71260, 74823, 87548, 99764, 106890, 109435, 124705, 126420, 131322, 149646, 153209, 213780, 218870, 249410, 262644, 299292, 306418, 328305, 374115, 437740, 459627, 498820, 612836, 656610, 748230, 766045, 919254, 1072463, 1313220, 1496460, 1532090, 1838508, 2144926, 2298135, 3064180, 3217389, 4289852, 4596270, 5362315, 6434778, 9192540, 10724630, 12869556, 16086945, 21449260, 32173890, 64347780]

約数ペア:

[(1, 64347780), (2, 32173890), (3, 21449260), (4, 16086945), (5, 12869556), (6, 10724630), (7, 9192540), (10, 6434778), (12, 5362315), (14, 4596270), (15, 4289852), (20, 3217389), (21, 3064180), (28, 2298135), (30, 2144926), (35, 1838508), (42, 1532090), (43, 1496460), (49, 1313220), (60, 1072463), (70, 919254), (84, 766045), (86, 748230), (98, 656610), (105, 612836), (129, 498820), (140, 459627), (147, 437740), (172, 374115), (196, 328305), (210, 306418), (215, 299292), (245, 262644), (258, 249410), (294, 218870), (301, 213780), (420, 153209), (430, 149646), (490, 131322), (509, 126420), (516, 124705), (588, 109435), (602, 106890), (645, 99764), (735, 87548), (860, 74823), (903, 71260), (980, 65661), (1018, 63210), (1204, 53445), (1290, 49882), (1470, 43774), (1505, 42756), (1527, 42140), (1806, 35630), (2036, 31605), (2107, 30540), (2545, 25284), (2580, 24941), (2940, 21887), (3010, 21378), (3054, 21070), (3563, 18060), (3612, 17815), (4214, 15270), (4515, 14252), (5090, 12642), (6020, 10689), (6108, 10535), (6321, 10180), (7126, 9030), (7635, 8428)]