780147125

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1$

素因数の和:351

約数の個数: 64

約数和(自身を含む): 1087257600

約数和(自身を除く): 307110475

約数列:

[1, 5, 19, 25, 29, 47, 95, 125, 145, 235, 241, 475, 551, 725, 893, 1175, 1205, 1363, 2375, 2755, 3625, 4465, 4579, 5875, 6025, 6815, 6989, 11327, 13775, 22325, 22895, 25897, 30125, 34075, 34945, 56635, 68875, 111625, 114475, 129485, 132791, 170375, 174725, 215213, 283175, 328483, 572375, 647425, 663955, 873625, 1076065, 1415875, 1642415, 3237125, 3319775, 5380325, 6241177, 8212075, 16598875, 26901625, 31205885, 41060375, 156029425, 780147125]

約数ペア:

[(1, 780147125), (5, 156029425), (19, 41060375), (25, 31205885), (29, 26901625), (47, 16598875), (95, 8212075), (125, 6241177), (145, 5380325), (235, 3319775), (241, 3237125), (475, 1642415), (551, 1415875), (725, 1076065), (893, 873625), (1175, 663955), (1205, 647425), (1363, 572375), (2375, 328483), (2755, 283175), (3625, 215213), (4465, 174725), (4579, 170375), (5875, 132791), (6025, 129485), (6815, 114475), (6989, 111625), (11327, 68875), (13775, 56635), (22325, 34945), (22895, 34075), (25897, 30125)]