25987640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13259}}^1$

素因数の和:13284

約数の個数: 48

約数和(自身を含む): 68023800

約数和(自身を除く): 42036160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 13259, 26518, 53036, 66295, 92813, 106072, 132590, 185626, 265180, 371252, 464065, 530360, 649691, 742504, 928130, 1299382, 1856260, 2598764, 3248455, 3712520, 5197528, 6496910, 12993820, 25987640]

約数ペア:

[(1, 25987640), (2, 12993820), (4, 6496910), (5, 5197528), (7, 3712520), (8, 3248455), (10, 2598764), (14, 1856260), (20, 1299382), (28, 928130), (35, 742504), (40, 649691), (49, 530360), (56, 464065), (70, 371252), (98, 265180), (140, 185626), (196, 132590), (245, 106072), (280, 92813), (392, 66295), (490, 53036), (980, 26518), (1960, 13259)]