18715020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{379}}^1\times {\mathrm{823}}^1$

素因数の和:1214

約数の個数: 48

約数和(自身を含む): 52604160

約数和(自身を除く): 33889140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 379, 758, 823, 1137, 1516, 1646, 1895, 2274, 2469, 3292, 3790, 4115, 4548, 4938, 5685, 7580, 8230, 9876, 11370, 12345, 16460, 22740, 24690, 49380, 311917, 623834, 935751, 1247668, 1559585, 1871502, 3119170, 3743004, 4678755, 6238340, 9357510, 18715020]

約数ペア:

[(1, 18715020), (2, 9357510), (3, 6238340), (4, 4678755), (5, 3743004), (6, 3119170), (10, 1871502), (12, 1559585), (15, 1247668), (20, 935751), (30, 623834), (60, 311917), (379, 49380), (758, 24690), (823, 22740), (1137, 16460), (1516, 12345), (1646, 11370), (1895, 9876), (2274, 8230), (2469, 7580), (3292, 5685), (3790, 4938), (4115, 4548)]