1388558875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{23}}^3\times {\mathrm{83}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 2000194560

約数和(自身を除く): 611635685

約数列:

[1, 5, 11, 23, 25, 55, 83, 115, 125, 253, 275, 415, 529, 575, 913, 1265, 1375, 1909, 2075, 2645, 2875, 4565, 5819, 6325, 9545, 10375, 12167, 13225, 20999, 22825, 29095, 31625, 43907, 47725, 60835, 66125, 104995, 114125, 133837, 145475, 219535, 238625, 304175, 482977, 524975, 669185, 727375, 1009861, 1097675, 1520875, 2414885, 2624875, 3345925, 5049305, 5488375, 11108471, 12074425, 16729625, 25246525, 55542355, 60372125, 126232625, 277711775, 1388558875]

約数ペア:

[(1, 1388558875), (5, 277711775), (11, 126232625), (23, 60372125), (25, 55542355), (55, 25246525), (83, 16729625), (115, 12074425), (125, 11108471), (253, 5488375), (275, 5049305), (415, 3345925), (529, 2624875), (575, 2414885), (913, 1520875), (1265, 1097675), (1375, 1009861), (1909, 727375), (2075, 669185), (2645, 524975), (2875, 482977), (4565, 304175), (5819, 238625), (6325, 219535), (9545, 145475), (10375, 133837), (12167, 114125), (13225, 104995), (20999, 66125), (22825, 60835), (29095, 47725), (31625, 43907)]