20488940225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1\times {\mathrm{9041}}^1$

素因数の和:9450

約数の個数: 48

約数和(自身を含む): 28882318080

約数和(自身を除く): 8393377855

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 367, 475, 1235, 1835, 4771, 6175, 6973, 9041, 9175, 23855, 34865, 45205, 90649, 117533, 119275, 171779, 174325, 226025, 453245, 587665, 858895, 2233127, 2266225, 2938325, 3318047, 4294475, 11165635, 16590235, 43134611, 55828175, 63042893, 82951175, 215673055, 315214465, 819557609, 1078365275, 1576072325, 4097788045, 20488940225]

約数ペア:

[(1, 20488940225), (5, 4097788045), (13, 1576072325), (19, 1078365275), (25, 819557609), (65, 315214465), (95, 215673055), (247, 82951175), (325, 63042893), (367, 55828175), (475, 43134611), (1235, 16590235), (1835, 11165635), (4771, 4294475), (6175, 3318047), (6973, 2938325), (9041, 2266225), (9175, 2233127), (23855, 858895), (34865, 587665), (45205, 453245), (90649, 226025), (117533, 174325), (119275, 171779)]