639341780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{24421}}^1$

素因数の和:24465

約数の個数: 96

約数和(自身を含む): 1772451072

約数和(自身を除く): 1133109292

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 20, 22, 28, 34, 35, 44, 55, 68, 70, 77, 85, 110, 119, 140, 154, 170, 187, 220, 238, 308, 340, 374, 385, 476, 595, 748, 770, 935, 1190, 1309, 1540, 1870, 2380, 2618, 3740, 5236, 6545, 13090, 24421, 26180, 48842, 97684, 122105, 170947, 244210, 268631, 341894, 415157, 488420, 537262, 683788, 830314, 854735, 1074524, 1343155, 1660628, 1709470, 1880417, 2075785, 2686310, 2906099, 3418940, 3760834, 4151570, 4566727, 5372620, 5812198, 7521668, 8303140, 9133454, 9402085, 11624396, 14530495, 18266908, 18804170, 22833635, 29060990, 31967089, 37608340, 45667270, 58121980, 63934178, 91334540, 127868356, 159835445, 319670890, 639341780]

約数ペア:

[(1, 639341780), (2, 319670890), (4, 159835445), (5, 127868356), (7, 91334540), (10, 63934178), (11, 58121980), (14, 45667270), (17, 37608340), (20, 31967089), (22, 29060990), (28, 22833635), (34, 18804170), (35, 18266908), (44, 14530495), (55, 11624396), (68, 9402085), (70, 9133454), (77, 8303140), (85, 7521668), (110, 5812198), (119, 5372620), (140, 4566727), (154, 4151570), (170, 3760834), (187, 3418940), (220, 2906099), (238, 2686310), (308, 2075785), (340, 1880417), (374, 1709470), (385, 1660628), (476, 1343155), (595, 1074524), (748, 854735), (770, 830314), (935, 683788), (1190, 537262), (1309, 488420), (1540, 415157), (1870, 341894), (2380, 268631), (2618, 244210), (3740, 170947), (5236, 122105), (6545, 97684), (13090, 48842), (24421, 26180)]