144426931025

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{641}}^1\times {\mathrm{3137}}^1$

素因数の和:3831

約数の個数: 72

約数和(自身を含む): 205718455944

約数和(自身を除く): 61291524919

約数列:

[1, 5, 13, 17, 25, 65, 85, 169, 221, 325, 425, 641, 845, 1105, 2873, 3137, 3205, 4225, 5525, 8333, 10897, 14365, 15685, 16025, 40781, 41665, 53329, 54485, 71825, 78425, 108329, 141661, 203905, 208325, 266645, 272425, 530153, 541645, 693277, 708305, 1019525, 1333225, 1841593, 2010817, 2650765, 2708225, 3466385, 3541525, 9012601, 9207965, 10054085, 13253825, 17331925, 26140621, 34183889, 45063005, 46039825, 50270425, 130703105, 170919445, 225315025, 339828073, 444390557, 653515525, 854597225, 1699140365, 2221952785, 5777077241, 8495701825, 11109763925, 28885386205, 144426931025]

約数ペア:

[(1, 144426931025), (5, 28885386205), (13, 11109763925), (17, 8495701825), (25, 5777077241), (65, 2221952785), (85, 1699140365), (169, 854597225), (221, 653515525), (325, 444390557), (425, 339828073), (641, 225315025), (845, 170919445), (1105, 130703105), (2873, 50270425), (3137, 46039825), (3205, 45063005), (4225, 34183889), (5525, 26140621), (8333, 17331925), (10897, 13253825), (14365, 10054085), (15685, 9207965), (16025, 9012601), (40781, 3541525), (41665, 3466385), (53329, 2708225), (54485, 2650765), (71825, 2010817), (78425, 1841593), (108329, 1333225), (141661, 1019525), (203905, 708305), (208325, 693277), (266645, 541645), (272425, 530153)]