1689430990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{213043}}^1$

素因数の和:213124

約数の個数: 32

約数和(自身を含む): 3328599456

約数和(自身を除く): 1639168466

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 610, 793, 1586, 3965, 7930, 213043, 426086, 1065215, 2130430, 2769559, 5539118, 12995623, 13847795, 25991246, 27695590, 64978115, 129956230, 168943099, 337886198, 844715495, 1689430990]

約数ペア:

[(1, 1689430990), (2, 844715495), (5, 337886198), (10, 168943099), (13, 129956230), (26, 64978115), (61, 27695590), (65, 25991246), (122, 13847795), (130, 12995623), (305, 5539118), (610, 2769559), (793, 2130430), (1586, 1065215), (3965, 426086), (7930, 213043)]