641439848

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{19447}}^1$

素因数の和:19510

約数の個数: 64

約数和(自身を含む): 1493606400

約数和(自身を除く): 852166552

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 31, 38, 56, 62, 76, 124, 133, 152, 217, 248, 266, 434, 532, 589, 868, 1064, 1178, 1736, 2356, 4123, 4712, 8246, 16492, 19447, 32984, 38894, 77788, 136129, 155576, 272258, 369493, 544516, 602857, 738986, 1089032, 1205714, 1477972, 2411428, 2586451, 2955944, 4219999, 4822856, 5172902, 8439998, 10345804, 11454283, 16879996, 20691608, 22908566, 33759992, 45817132, 80179981, 91634264, 160359962, 320719924, 641439848]

約数ペア:

[(1, 641439848), (2, 320719924), (4, 160359962), (7, 91634264), (8, 80179981), (14, 45817132), (19, 33759992), (28, 22908566), (31, 20691608), (38, 16879996), (56, 11454283), (62, 10345804), (76, 8439998), (124, 5172902), (133, 4822856), (152, 4219999), (217, 2955944), (248, 2586451), (266, 2411428), (434, 1477972), (532, 1205714), (589, 1089032), (868, 738986), (1064, 602857), (1178, 544516), (1736, 369493), (2356, 272258), (4123, 155576), (4712, 136129), (8246, 77788), (16492, 38894), (19447, 32984)]