128516440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2447}}^1$

素因数の和:2572

約数の個数: 64

約数和(自身を含む): 314616960

約数和(自身を除く): 186100520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 101, 104, 130, 202, 260, 404, 505, 520, 808, 1010, 1313, 2020, 2447, 2626, 4040, 4894, 5252, 6565, 9788, 10504, 12235, 13130, 19576, 24470, 26260, 31811, 48940, 52520, 63622, 97880, 127244, 159055, 247147, 254488, 318110, 494294, 636220, 988588, 1235735, 1272440, 1977176, 2471470, 3212911, 4942940, 6425822, 9885880, 12851644, 16064555, 25703288, 32129110, 64258220, 128516440]

約数ペア:

[(1, 128516440), (2, 64258220), (4, 32129110), (5, 25703288), (8, 16064555), (10, 12851644), (13, 9885880), (20, 6425822), (26, 4942940), (40, 3212911), (52, 2471470), (65, 1977176), (101, 1272440), (104, 1235735), (130, 988588), (202, 636220), (260, 494294), (404, 318110), (505, 254488), (520, 247147), (808, 159055), (1010, 127244), (1313, 97880), (2020, 63622), (2447, 52520), (2626, 48940), (4040, 31811), (4894, 26260), (5252, 24470), (6565, 19576), (9788, 13130), (10504, 12235)]