18470660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3739}}^1$

素因数の和:3780

約数の個数: 48

約数和(自身を含む): 43982400

約数和(自身を除く): 25511740

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 3739, 4940, 7478, 14956, 18695, 37390, 48607, 71041, 74780, 97214, 142082, 194428, 243035, 284164, 355205, 486070, 710410, 923533, 972140, 1420820, 1847066, 3694132, 4617665, 9235330, 18470660]

約数ペア:

[(1, 18470660), (2, 9235330), (4, 4617665), (5, 3694132), (10, 1847066), (13, 1420820), (19, 972140), (20, 923533), (26, 710410), (38, 486070), (52, 355205), (65, 284164), (76, 243035), (95, 194428), (130, 142082), (190, 97214), (247, 74780), (260, 71041), (380, 48607), (494, 37390), (988, 18695), (1235, 14956), (2470, 7478), (3739, 4940)]