210319820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:351

約数の個数: 72

約数和(自身を含む): 468607776

約数和(自身を除く): 258287956

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 103, 115, 193, 206, 230, 386, 412, 460, 515, 529, 772, 965, 1030, 1058, 1930, 2060, 2116, 2369, 2645, 3860, 4439, 4738, 5290, 8878, 9476, 10580, 11845, 17756, 19879, 22195, 23690, 39758, 44390, 47380, 54487, 79516, 88780, 99395, 102097, 108974, 198790, 204194, 217948, 272435, 397580, 408388, 457217, 510485, 544870, 914434, 1020970, 1089740, 1828868, 2041940, 2286085, 4572170, 9144340, 10515991, 21031982, 42063964, 52579955, 105159910, 210319820]

約数ペア:

[(1, 210319820), (2, 105159910), (4, 52579955), (5, 42063964), (10, 21031982), (20, 10515991), (23, 9144340), (46, 4572170), (92, 2286085), (103, 2041940), (115, 1828868), (193, 1089740), (206, 1020970), (230, 914434), (386, 544870), (412, 510485), (460, 457217), (515, 408388), (529, 397580), (772, 272435), (965, 217948), (1030, 204194), (1058, 198790), (1930, 108974), (2060, 102097), (2116, 99395), (2369, 88780), (2645, 79516), (3860, 54487), (4439, 47380), (4738, 44390), (5290, 39758), (8878, 23690), (9476, 22195), (10580, 19879), (11845, 17756)]