279974420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:369

約数の個数: 96

約数和(自身を含む): 660441600

約数和(自身を除く): 380467180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 89, 110, 158, 178, 181, 220, 316, 356, 362, 395, 445, 724, 790, 869, 890, 905, 979, 1580, 1738, 1780, 1810, 1958, 1991, 3476, 3620, 3916, 3982, 4345, 4895, 7031, 7964, 8690, 9790, 9955, 14062, 14299, 16109, 17380, 19580, 19910, 28124, 28598, 32218, 35155, 39820, 57196, 64436, 70310, 71495, 77341, 80545, 140620, 142990, 154682, 157289, 161090, 177199, 285980, 309364, 314578, 322180, 354398, 386705, 629156, 708796, 773410, 786445, 885995, 1272611, 1546820, 1572890, 1771990, 2545222, 3145780, 3543980, 5090444, 6363055, 12726110, 13998721, 25452220, 27997442, 55994884, 69993605, 139987210, 279974420]

約数ペア:

[(1, 279974420), (2, 139987210), (4, 69993605), (5, 55994884), (10, 27997442), (11, 25452220), (20, 13998721), (22, 12726110), (44, 6363055), (55, 5090444), (79, 3543980), (89, 3145780), (110, 2545222), (158, 1771990), (178, 1572890), (181, 1546820), (220, 1272611), (316, 885995), (356, 786445), (362, 773410), (395, 708796), (445, 629156), (724, 386705), (790, 354398), (869, 322180), (890, 314578), (905, 309364), (979, 285980), (1580, 177199), (1738, 161090), (1780, 157289), (1810, 154682), (1958, 142990), (1991, 140620), (3476, 80545), (3620, 77341), (3916, 71495), (3982, 70310), (4345, 64436), (4895, 57196), (7031, 39820), (7964, 35155), (8690, 32218), (9790, 28598), (9955, 28124), (14062, 19910), (14299, 19580), (16109, 17380)]