168365820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{400871}}^1$

素因数の和:400890

約数の個数: 48

約数和(自身を含む): 538771968

約数和(自身を除く): 370406148

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, 400871, 801742, 1202613, 1603484, 2004355, 2405226, 2806097, 4008710, 4810452, 5612194, 6013065, 8017420, 8418291, 11224388, 12026130, 14030485, 16836582, 24052260, 28060970, 33673164, 42091455, 56121940, 84182910, 168365820]

約数ペア:

[(1, 168365820), (2, 84182910), (3, 56121940), (4, 42091455), (5, 33673164), (6, 28060970), (7, 24052260), (10, 16836582), (12, 14030485), (14, 12026130), (15, 11224388), (20, 8418291), (21, 8017420), (28, 6013065), (30, 5612194), (35, 4810452), (42, 4008710), (60, 2806097), (70, 2405226), (84, 2004355), (105, 1603484), (140, 1202613), (210, 801742), (420, 400871)]