18421350820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{211691}}^1$

素因数の和:211948

約数の個数: 48

約数和(自身を含む): 40898894400

約数和(自身を除く): 22477543580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 229, 380, 458, 916, 1145, 2290, 4351, 4580, 8702, 17404, 21755, 43510, 87020, 211691, 423382, 846764, 1058455, 2116910, 4022129, 4233820, 8044258, 16088516, 20110645, 40221290, 48477239, 80442580, 96954478, 193908956, 242386195, 484772390, 921067541, 969544780, 1842135082, 3684270164, 4605337705, 9210675410, 18421350820]

約数ペア:

[(1, 18421350820), (2, 9210675410), (4, 4605337705), (5, 3684270164), (10, 1842135082), (19, 969544780), (20, 921067541), (38, 484772390), (76, 242386195), (95, 193908956), (190, 96954478), (229, 80442580), (380, 48477239), (458, 40221290), (916, 20110645), (1145, 16088516), (2290, 8044258), (4351, 4233820), (4580, 4022129), (8702, 2116910), (17404, 1058455), (21755, 846764), (43510, 423382), (87020, 211691)]