19776770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1021}}^1$

素因数の和:1190

約数の個数: 32

約数和(自身を含む): 38631600

約数和(自身を除く): 18854830

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 1021, 1490, 1937, 2042, 3874, 5105, 9685, 10210, 13273, 19370, 26546, 66365, 132730, 152129, 304258, 760645, 1521290, 1977677, 3955354, 9888385, 19776770]

約数ペア:

[(1, 19776770), (2, 9888385), (5, 3955354), (10, 1977677), (13, 1521290), (26, 760645), (65, 304258), (130, 152129), (149, 132730), (298, 66365), (745, 26546), (1021, 19370), (1490, 13273), (1937, 10210), (2042, 9685), (3874, 5105)]