1719380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 4127760

約数和(自身を除く): 2408380

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 389, 442, 778, 884, 1105, 1556, 1945, 2210, 3890, 4420, 5057, 6613, 7780, 10114, 13226, 20228, 25285, 26452, 33065, 50570, 66130, 85969, 101140, 132260, 171938, 343876, 429845, 859690, 1719380]

約数ペア:

[(1, 1719380), (2, 859690), (4, 429845), (5, 343876), (10, 171938), (13, 132260), (17, 101140), (20, 85969), (26, 66130), (34, 50570), (52, 33065), (65, 26452), (68, 25285), (85, 20228), (130, 13226), (170, 10114), (221, 7780), (260, 6613), (340, 5057), (389, 4420), (442, 3890), (778, 2210), (884, 1945), (1105, 1556)]