2635720

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{503}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 5987520

約数和(自身を除く): 3351800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 503, 524, 655, 1006, 1048, 1310, 2012, 2515, 2620, 4024, 5030, 5240, 10060, 20120, 65893, 131786, 263572, 329465, 527144, 658930, 1317860, 2635720]

約数ペア:

[(1, 2635720), (2, 1317860), (4, 658930), (5, 527144), (8, 329465), (10, 263572), (20, 131786), (40, 65893), (131, 20120), (262, 10060), (503, 5240), (524, 5030), (655, 4024), (1006, 2620), (1048, 2515), (1310, 2012)]