390008990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{613}}^1$

素因数の和:837

約数の個数: 64

約数和(自身を含む): 822268800

約数和(自身を除く): 432259810

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 70, 122, 149, 298, 305, 427, 610, 613, 745, 854, 1043, 1226, 1490, 2086, 2135, 3065, 4270, 4291, 5215, 6130, 8582, 9089, 10430, 18178, 21455, 37393, 42910, 45445, 63623, 74786, 90890, 91337, 127246, 182674, 186965, 261751, 318115, 373930, 456685, 523502, 636230, 639359, 913370, 1278718, 1308755, 2617510, 3196795, 5571557, 6393590, 11143114, 27857785, 39000899, 55715570, 78001798, 195004495, 390008990]

約数ペア:

[(1, 390008990), (2, 195004495), (5, 78001798), (7, 55715570), (10, 39000899), (14, 27857785), (35, 11143114), (61, 6393590), (70, 5571557), (122, 3196795), (149, 2617510), (298, 1308755), (305, 1278718), (427, 913370), (610, 639359), (613, 636230), (745, 523502), (854, 456685), (1043, 373930), (1226, 318115), (1490, 261751), (2086, 186965), (2135, 182674), (3065, 127246), (4270, 91337), (4291, 90890), (5215, 74786), (6130, 63623), (8582, 45445), (9089, 42910), (10430, 37393), (18178, 21455)]