814640820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1939621}}^1$

素因数の和:1939640

約数の個数: 48

約数和(自身を含む): 2606851968

約数和(自身を除く): 1792211148

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 1939621, 3879242, 5818863, 7758484, 9698105, 11637726, 13577347, 19396210, 23275452, 27154694, 29094315, 38792420, 40732041, 54309388, 58188630, 67886735, 81464082, 116377260, 135773470, 162928164, 203660205, 271546940, 407320410, 814640820]

約数ペア:

[(1, 814640820), (2, 407320410), (3, 271546940), (4, 203660205), (5, 162928164), (6, 135773470), (7, 116377260), (10, 81464082), (12, 67886735), (14, 58188630), (15, 54309388), (20, 40732041), (21, 38792420), (28, 29094315), (30, 27154694), (35, 23275452), (42, 19396210), (60, 13577347), (70, 11637726), (84, 9698105), (105, 7758484), (140, 5818863), (210, 3879242), (420, 1939621)]