20836340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4801}}^1$

素因数の和:4848

約数の個数: 48

約数和(自身を含む): 51631104

約数和(自身を除く): 30794764

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 4801, 9602, 19204, 24005, 33607, 48010, 67214, 96020, 134428, 148831, 168035, 297662, 336070, 595324, 672140, 744155, 1041817, 1488310, 2083634, 2976620, 4167268, 5209085, 10418170, 20836340]

約数ペア:

[(1, 20836340), (2, 10418170), (4, 5209085), (5, 4167268), (7, 2976620), (10, 2083634), (14, 1488310), (20, 1041817), (28, 744155), (31, 672140), (35, 595324), (62, 336070), (70, 297662), (124, 168035), (140, 148831), (155, 134428), (217, 96020), (310, 67214), (434, 48010), (620, 33607), (868, 24005), (1085, 19204), (2170, 9602), (4340, 4801)]