18109910

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2843}}^1$

素因数の和:2877

約数の個数: 48

約数和(自身を含む): 40851216

約数和(自身を除く): 22741306

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 455, 490, 637, 910, 1274, 2843, 3185, 5686, 6370, 14215, 19901, 28430, 36959, 39802, 73918, 99505, 139307, 184795, 199010, 258713, 278614, 369590, 517426, 696535, 1293565, 1393070, 1810991, 2587130, 3621982, 9054955, 18109910]

約数ペア:

[(1, 18109910), (2, 9054955), (5, 3621982), (7, 2587130), (10, 1810991), (13, 1393070), (14, 1293565), (26, 696535), (35, 517426), (49, 369590), (65, 278614), (70, 258713), (91, 199010), (98, 184795), (130, 139307), (182, 99505), (245, 73918), (455, 39802), (490, 36959), (637, 28430), (910, 19901), (1274, 14215), (2843, 6370), (3185, 5686)]