9780680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2687}}^1$

素因数の和:2718

約数の個数: 64

約数和(自身を含む): 27095040

約数和(自身を除く): 17314360

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 2687, 3640, 5374, 10748, 13435, 18809, 21496, 26870, 34931, 37618, 53740, 69862, 75236, 94045, 107480, 139724, 150472, 174655, 188090, 244517, 279448, 349310, 376180, 489034, 698620, 752360, 978068, 1222585, 1397240, 1956136, 2445170, 4890340, 9780680]

約数ペア:

[(1, 9780680), (2, 4890340), (4, 2445170), (5, 1956136), (7, 1397240), (8, 1222585), (10, 978068), (13, 752360), (14, 698620), (20, 489034), (26, 376180), (28, 349310), (35, 279448), (40, 244517), (52, 188090), (56, 174655), (65, 150472), (70, 139724), (91, 107480), (104, 94045), (130, 75236), (140, 69862), (182, 53740), (260, 37618), (280, 34931), (364, 26870), (455, 21496), (520, 18809), (728, 13435), (910, 10748), (1820, 5374), (2687, 3640)]