426387455

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{883}}^1$

素因数の和:960

約数の個数: 64

約数和(自身を含む): 641571840

約数和(自身を除く): 215184385

約数列:

[1, 5, 13, 17, 19, 23, 65, 85, 95, 115, 221, 247, 299, 323, 391, 437, 883, 1105, 1235, 1495, 1615, 1955, 2185, 4199, 4415, 5083, 5681, 7429, 11479, 15011, 16777, 20309, 20995, 25415, 28405, 37145, 57395, 75055, 83885, 96577, 101545, 195143, 218101, 264017, 285209, 345253, 385871, 482885, 975715, 1090505, 1320085, 1426045, 1726265, 1929355, 3707717, 4488289, 5016323, 6559807, 18538585, 22441445, 25081615, 32799035, 85277491, 426387455]

約数ペア:

[(1, 426387455), (5, 85277491), (13, 32799035), (17, 25081615), (19, 22441445), (23, 18538585), (65, 6559807), (85, 5016323), (95, 4488289), (115, 3707717), (221, 1929355), (247, 1726265), (299, 1426045), (323, 1320085), (391, 1090505), (437, 975715), (883, 482885), (1105, 385871), (1235, 345253), (1495, 285209), (1615, 264017), (1955, 218101), (2185, 195143), (4199, 101545), (4415, 96577), (5083, 83885), (5681, 75055), (7429, 57395), (11479, 37145), (15011, 28405), (16777, 25415), (20309, 20995)]