127609820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{28871}}^1$

素因数の和:28910

約数の個数: 48

約数和(自身を含む): 305581248

約数和(自身を除く): 177971428

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 28871, 57742, 115484, 144355, 288710, 375323, 490807, 577420, 750646, 981614, 1501292, 1876615, 1963228, 2454035, 3753230, 4908070, 6380491, 7506460, 9816140, 12760982, 25521964, 31902455, 63804910, 127609820]

約数ペア:

[(1, 127609820), (2, 63804910), (4, 31902455), (5, 25521964), (10, 12760982), (13, 9816140), (17, 7506460), (20, 6380491), (26, 4908070), (34, 3753230), (52, 2454035), (65, 1963228), (68, 1876615), (85, 1501292), (130, 981614), (170, 750646), (221, 577420), (260, 490807), (340, 375323), (442, 288710), (884, 144355), (1105, 115484), (2210, 57742), (4420, 28871)]