8270990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 18748800

約数和(自身を除く): 10477810

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 61, 65, 70, 91, 122, 130, 149, 182, 298, 305, 427, 455, 610, 745, 793, 854, 910, 1043, 1490, 1586, 1937, 2086, 2135, 3874, 3965, 4270, 5215, 5551, 7930, 9089, 9685, 10430, 11102, 13559, 18178, 19370, 27118, 27755, 45445, 55510, 63623, 67795, 90890, 118157, 127246, 135590, 236314, 318115, 590785, 636230, 827099, 1181570, 1654198, 4135495, 8270990]

約数ペア:

[(1, 8270990), (2, 4135495), (5, 1654198), (7, 1181570), (10, 827099), (13, 636230), (14, 590785), (26, 318115), (35, 236314), (61, 135590), (65, 127246), (70, 118157), (91, 90890), (122, 67795), (130, 63623), (149, 55510), (182, 45445), (298, 27755), (305, 27118), (427, 19370), (455, 18178), (610, 13559), (745, 11102), (793, 10430), (854, 9685), (910, 9089), (1043, 7930), (1490, 5551), (1586, 5215), (1937, 4270), (2086, 3965), (2135, 3874)]