66919120

素因数分解:

$2^4\times 5^1\times {\mathrm{503}}^1\times {\mathrm{1663}}^1$

素因数の和:2179

約数の個数: 40

約数和(自身を含む): 155990016

約数和(自身を除く): 89070896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 503, 1006, 1663, 2012, 2515, 3326, 4024, 5030, 6652, 8048, 8315, 10060, 13304, 16630, 20120, 26608, 33260, 40240, 66520, 133040, 836489, 1672978, 3345956, 4182445, 6691912, 8364890, 13383824, 16729780, 33459560, 66919120]

約数ペア:

[(1, 66919120), (2, 33459560), (4, 16729780), (5, 13383824), (8, 8364890), (10, 6691912), (16, 4182445), (20, 3345956), (40, 1672978), (80, 836489), (503, 133040), (1006, 66520), (1663, 40240), (2012, 33260), (2515, 26608), (3326, 20120), (4024, 16630), (5030, 13304), (6652, 10060), (8048, 8315)]