20297270

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1801}}^1$

素因数の和:1845

約数の個数: 48

約数和(自身を含む): 44372448

約数和(自身を除く): 24075178

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 49, 70, 98, 115, 161, 230, 245, 322, 490, 805, 1127, 1610, 1801, 2254, 3602, 5635, 9005, 11270, 12607, 18010, 25214, 41423, 63035, 82846, 88249, 126070, 176498, 207115, 289961, 414230, 441245, 579922, 882490, 1449805, 2029727, 2899610, 4059454, 10148635, 20297270]

約数ペア:

[(1, 20297270), (2, 10148635), (5, 4059454), (7, 2899610), (10, 2029727), (14, 1449805), (23, 882490), (35, 579922), (46, 441245), (49, 414230), (70, 289961), (98, 207115), (115, 176498), (161, 126070), (230, 88249), (245, 82846), (322, 63035), (490, 41423), (805, 25214), (1127, 18010), (1610, 12607), (1801, 11270), (2254, 9005), (3602, 5635)]