123478980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{907}}^1\times {\mathrm{2269}}^1$

素因数の和:3188

約数の個数: 48

約数和(自身を含む): 346274880

約数和(自身を除く): 222795900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 907, 1814, 2269, 2721, 3628, 4535, 4538, 5442, 6807, 9070, 9076, 10884, 11345, 13605, 13614, 18140, 22690, 27210, 27228, 34035, 45380, 54420, 68070, 136140, 2057983, 4115966, 6173949, 8231932, 10289915, 12347898, 20579830, 24695796, 30869745, 41159660, 61739490, 123478980]

約数ペア:

[(1, 123478980), (2, 61739490), (3, 41159660), (4, 30869745), (5, 24695796), (6, 20579830), (10, 12347898), (12, 10289915), (15, 8231932), (20, 6173949), (30, 4115966), (60, 2057983), (907, 136140), (1814, 68070), (2269, 54420), (2721, 45380), (3628, 34035), (4535, 27228), (4538, 27210), (5442, 22690), (6807, 18140), (9070, 13614), (9076, 13605), (10884, 11345)]