20161218040

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{307}}^1\times {\mathrm{27827}}^1$

素因数の和:28204

約数の個数: 64

約数和(自身を含む): 46283529600

約数和(自身を除く): 26122311560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 307, 472, 590, 614, 1180, 1228, 1535, 2360, 2456, 3070, 6140, 12280, 18113, 27827, 36226, 55654, 72452, 90565, 111308, 139135, 144904, 181130, 222616, 278270, 362260, 556540, 724520, 1113080, 1641793, 3283586, 6567172, 8208965, 8542889, 13134344, 16417930, 17085778, 32835860, 34171556, 42714445, 65671720, 68343112, 85428890, 170857780, 341715560, 504030451, 1008060902, 2016121804, 2520152255, 4032243608, 5040304510, 10080609020, 20161218040]

約数ペア:

[(1, 20161218040), (2, 10080609020), (4, 5040304510), (5, 4032243608), (8, 2520152255), (10, 2016121804), (20, 1008060902), (40, 504030451), (59, 341715560), (118, 170857780), (236, 85428890), (295, 68343112), (307, 65671720), (472, 42714445), (590, 34171556), (614, 32835860), (1180, 17085778), (1228, 16417930), (1535, 13134344), (2360, 8542889), (2456, 8208965), (3070, 6567172), (6140, 3283586), (12280, 1641793), (18113, 1113080), (27827, 724520), (36226, 556540), (55654, 362260), (72452, 278270), (90565, 222616), (111308, 181130), (139135, 144904)]