221852020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{1613}}^1$

素因数の和:1681

約数の個数: 72

約数和(自身を含む): 524814696

約数和(自身を除く): 302962676

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 529, 598, 1058, 1196, 1495, 1613, 2116, 2645, 2990, 3226, 5290, 5980, 6452, 6877, 8065, 10580, 13754, 16130, 20969, 27508, 32260, 34385, 37099, 41938, 68770, 74198, 83876, 104845, 137540, 148396, 185495, 209690, 370990, 419380, 482287, 741980, 853277, 964574, 1706554, 1929148, 2411435, 3413108, 4266385, 4822870, 8532770, 9645740, 11092601, 17065540, 22185202, 44370404, 55463005, 110926010, 221852020]

約数ペア:

[(1, 221852020), (2, 110926010), (4, 55463005), (5, 44370404), (10, 22185202), (13, 17065540), (20, 11092601), (23, 9645740), (26, 8532770), (46, 4822870), (52, 4266385), (65, 3413108), (92, 2411435), (115, 1929148), (130, 1706554), (230, 964574), (260, 853277), (299, 741980), (460, 482287), (529, 419380), (598, 370990), (1058, 209690), (1196, 185495), (1495, 148396), (1613, 137540), (2116, 104845), (2645, 83876), (2990, 74198), (3226, 68770), (5290, 41938), (5980, 37099), (6452, 34385), (6877, 32260), (8065, 27508), (10580, 20969), (13754, 16130)]