261113860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:437

約数の個数: 96

約数和(自身を含む): 643991040

約数和(自身を除く): 382877180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 109, 140, 142, 218, 241, 284, 355, 436, 482, 497, 545, 710, 763, 964, 994, 1090, 1205, 1420, 1526, 1687, 1988, 2180, 2410, 2485, 3052, 3374, 3815, 4820, 4970, 6748, 7630, 7739, 8435, 9940, 15260, 15478, 16870, 17111, 26269, 30956, 33740, 34222, 38695, 52538, 54173, 68444, 77390, 85555, 105076, 108346, 119777, 131345, 154780, 171110, 183883, 216692, 239554, 262690, 270865, 342220, 367766, 479108, 525380, 541730, 598885, 735532, 919415, 1083460, 1197770, 1838830, 1865099, 2395540, 3677660, 3730198, 7460396, 9325495, 13055693, 18650990, 26111386, 37301980, 52222772, 65278465, 130556930, 261113860]

約数ペア:

[(1, 261113860), (2, 130556930), (4, 65278465), (5, 52222772), (7, 37301980), (10, 26111386), (14, 18650990), (20, 13055693), (28, 9325495), (35, 7460396), (70, 3730198), (71, 3677660), (109, 2395540), (140, 1865099), (142, 1838830), (218, 1197770), (241, 1083460), (284, 919415), (355, 735532), (436, 598885), (482, 541730), (497, 525380), (545, 479108), (710, 367766), (763, 342220), (964, 270865), (994, 262690), (1090, 239554), (1205, 216692), (1420, 183883), (1526, 171110), (1687, 154780), (1988, 131345), (2180, 119777), (2410, 108346), (2485, 105076), (3052, 85555), (3374, 77390), (3815, 68444), (4820, 54173), (4970, 52538), (6748, 38695), (7630, 34222), (7739, 33740), (8435, 30956), (9940, 26269), (15260, 17111), (15478, 16870)]