217019840

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:346

約数の個数: 112

約数和(自身を含む): 540739584

約数和(自身を除く): 323719744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 131, 155, 160, 167, 248, 262, 310, 320, 334, 496, 524, 620, 655, 668, 835, 992, 1048, 1240, 1310, 1336, 1670, 1984, 2096, 2480, 2620, 2672, 3340, 4061, 4192, 4960, 5177, 5240, 5344, 6680, 8122, 8384, 9920, 10354, 10480, 10688, 13360, 16244, 20305, 20708, 20960, 21877, 25885, 26720, 32488, 40610, 41416, 41920, 43754, 51770, 53440, 64976, 81220, 82832, 87508, 103540, 109385, 129952, 162440, 165664, 175016, 207080, 218770, 259904, 324880, 331328, 350032, 414160, 437540, 649760, 678187, 700064, 828320, 875080, 1299520, 1356374, 1400128, 1656640, 1750160, 2712748, 3390935, 3500320, 5425496, 6781870, 7000640, 10850992, 13563740, 21701984, 27127480, 43403968, 54254960, 108509920, 217019840]

約数ペア:

[(1, 217019840), (2, 108509920), (4, 54254960), (5, 43403968), (8, 27127480), (10, 21701984), (16, 13563740), (20, 10850992), (31, 7000640), (32, 6781870), (40, 5425496), (62, 3500320), (64, 3390935), (80, 2712748), (124, 1750160), (131, 1656640), (155, 1400128), (160, 1356374), (167, 1299520), (248, 875080), (262, 828320), (310, 700064), (320, 678187), (334, 649760), (496, 437540), (524, 414160), (620, 350032), (655, 331328), (668, 324880), (835, 259904), (992, 218770), (1048, 207080), (1240, 175016), (1310, 165664), (1336, 162440), (1670, 129952), (1984, 109385), (2096, 103540), (2480, 87508), (2620, 82832), (2672, 81220), (3340, 64976), (4061, 53440), (4192, 51770), (4960, 43754), (5177, 41920), (5240, 41416), (5344, 40610), (6680, 32488), (8122, 26720), (8384, 25885), (9920, 21877), (10354, 20960), (10480, 20708), (10688, 20305), (13360, 16244)]