28369191100

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{419}}^1\times {\mathrm{4871}}^1$

素因数の和:5443

約数の個数: 72

約数和(自身を含む): 62164771200

約数和(自身を除く): 33795580100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 419, 556, 695, 838, 1390, 1676, 2095, 2780, 3475, 4190, 4871, 6950, 8380, 9742, 10475, 13900, 19484, 20950, 24355, 41900, 48710, 58241, 97420, 116482, 121775, 232964, 243550, 291205, 487100, 582410, 677069, 1164820, 1354138, 1456025, 2040949, 2708276, 2912050, 3385345, 4081898, 5824100, 6770690, 8163796, 10204745, 13541380, 16926725, 20409490, 33853450, 40818980, 51023725, 67706900, 102047450, 204094900, 283691911, 567383822, 1134767644, 1418459555, 2836919110, 5673838220, 7092297775, 14184595550, 28369191100]

約数ペア:

[(1, 28369191100), (2, 14184595550), (4, 7092297775), (5, 5673838220), (10, 2836919110), (20, 1418459555), (25, 1134767644), (50, 567383822), (100, 283691911), (139, 204094900), (278, 102047450), (419, 67706900), (556, 51023725), (695, 40818980), (838, 33853450), (1390, 20409490), (1676, 16926725), (2095, 13541380), (2780, 10204745), (3475, 8163796), (4190, 6770690), (4871, 5824100), (6950, 4081898), (8380, 3385345), (9742, 2912050), (10475, 2708276), (13900, 2040949), (19484, 1456025), (20950, 1354138), (24355, 1164820), (41900, 677069), (48710, 582410), (58241, 487100), (97420, 291205), (116482, 243550), (121775, 232964)]