261357720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167537}}^1$

素因数の和:167564

約数の個数: 64

約数和(自身を含む): 844391520

約数和(自身を除く): 583033800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 167537, 335074, 502611, 670148, 837685, 1005222, 1340296, 1675370, 2010444, 2177981, 2513055, 3350740, 4020888, 4355962, 5026110, 6533943, 6701480, 8711924, 10052220, 10889905, 13067886, 17423848, 20104440, 21779810, 26135772, 32669715, 43559620, 52271544, 65339430, 87119240, 130678860, 261357720]

約数ペア:

[(1, 261357720), (2, 130678860), (3, 87119240), (4, 65339430), (5, 52271544), (6, 43559620), (8, 32669715), (10, 26135772), (12, 21779810), (13, 20104440), (15, 17423848), (20, 13067886), (24, 10889905), (26, 10052220), (30, 8711924), (39, 6701480), (40, 6533943), (52, 5026110), (60, 4355962), (65, 4020888), (78, 3350740), (104, 2513055), (120, 2177981), (130, 2010444), (156, 1675370), (195, 1340296), (260, 1005222), (312, 837685), (390, 670148), (520, 502611), (780, 335074), (1560, 167537)]