128784850

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4373}}^1$

素因数の和:4435

約数の個数: 48

約数和(自身を含む): 260340480

約数和(自身を除く): 131555630

約数列:

[1, 2, 5, 10, 19, 25, 31, 38, 50, 62, 95, 155, 190, 310, 475, 589, 775, 950, 1178, 1550, 2945, 4373, 5890, 8746, 14725, 21865, 29450, 43730, 83087, 109325, 135563, 166174, 218650, 271126, 415435, 677815, 830870, 1355630, 2077175, 2575697, 3389075, 4154350, 5151394, 6778150, 12878485, 25756970, 64392425, 128784850]

約数ペア:

[(1, 128784850), (2, 64392425), (5, 25756970), (10, 12878485), (19, 6778150), (25, 5151394), (31, 4154350), (38, 3389075), (50, 2575697), (62, 2077175), (95, 1355630), (155, 830870), (190, 677815), (310, 415435), (475, 271126), (589, 218650), (775, 166174), (950, 135563), (1178, 109325), (1550, 83087), (2945, 43730), (4373, 29450), (5890, 21865), (8746, 14725)]