20121974875

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{83537}}^1$

素因数の和:83640

約数の個数: 32

約数和(自身を含む): 26272366848

約数和(自身を除く): 6150391973

約数列:

[1, 5, 25, 41, 47, 125, 205, 235, 1025, 1175, 1927, 5125, 5875, 9635, 48175, 83537, 240875, 417685, 2088425, 3425017, 3926239, 10442125, 17125085, 19631195, 85625425, 98155975, 160975799, 428127125, 490779875, 804878995, 4024394975, 20121974875]

約数ペア:

[(1, 20121974875), (5, 4024394975), (25, 804878995), (41, 490779875), (47, 428127125), (125, 160975799), (205, 98155975), (235, 85625425), (1025, 19631195), (1175, 17125085), (1927, 10442125), (5125, 3926239), (5875, 3425017), (9635, 2088425), (48175, 417685), (83537, 240875)]