20161784020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20573249}}^1$

素因数の和:20573272

約数の個数: 36

約数和(自身を含む): 49252360500

約数和(自身を除く): 29090576480

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20573249, 41146498, 82292996, 102866245, 144012743, 205732490, 288025486, 411464980, 576050972, 720063715, 1008089201, 1440127430, 2016178402, 2880254860, 4032356804, 5040446005, 10080892010, 20161784020]

約数ペア:

[(1, 20161784020), (2, 10080892010), (4, 5040446005), (5, 4032356804), (7, 2880254860), (10, 2016178402), (14, 1440127430), (20, 1008089201), (28, 720063715), (35, 576050972), (49, 411464980), (70, 288025486), (98, 205732490), (140, 144012743), (196, 102866245), (245, 82292996), (490, 41146498), (980, 20573249)]