40387880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{769}}^1$

素因数の和:894

約数の個数: 64

約数和(自身を含む): 98960400

約数和(自身を除く): 58572520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 101, 104, 130, 202, 260, 404, 505, 520, 769, 808, 1010, 1313, 1538, 2020, 2626, 3076, 3845, 4040, 5252, 6152, 6565, 7690, 9997, 10504, 13130, 15380, 19994, 26260, 30760, 39988, 49985, 52520, 77669, 79976, 99970, 155338, 199940, 310676, 388345, 399880, 621352, 776690, 1009697, 1553380, 2019394, 3106760, 4038788, 5048485, 8077576, 10096970, 20193940, 40387880]

約数ペア:

[(1, 40387880), (2, 20193940), (4, 10096970), (5, 8077576), (8, 5048485), (10, 4038788), (13, 3106760), (20, 2019394), (26, 1553380), (40, 1009697), (52, 776690), (65, 621352), (101, 399880), (104, 388345), (130, 310676), (202, 199940), (260, 155338), (404, 99970), (505, 79976), (520, 77669), (769, 52520), (808, 49985), (1010, 39988), (1313, 30760), (1538, 26260), (2020, 19994), (2626, 15380), (3076, 13130), (3845, 10504), (4040, 9997), (5252, 7690), (6152, 6565)]