217877075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 303168096

約数和(自身を除く): 85291021

約数列:

[1, 5, 13, 25, 41, 65, 83, 197, 205, 325, 415, 533, 985, 1025, 1079, 2075, 2561, 2665, 3403, 4925, 5395, 8077, 12805, 13325, 16351, 17015, 26975, 40385, 44239, 64025, 81755, 85075, 105001, 201925, 212563, 221195, 408775, 525005, 670391, 1062815, 1105975, 2625025, 3351955, 5314075, 8715083, 16759775, 43575415, 217877075]

約数ペア:

[(1, 217877075), (5, 43575415), (13, 16759775), (25, 8715083), (41, 5314075), (65, 3351955), (83, 2625025), (197, 1105975), (205, 1062815), (325, 670391), (415, 525005), (533, 408775), (985, 221195), (1025, 212563), (1079, 201925), (2075, 105001), (2561, 85075), (2665, 81755), (3403, 64025), (4925, 44239), (5395, 40385), (8077, 26975), (12805, 17015), (13325, 16351)]