20305148

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^2$

素因数の和:218

約数の個数: 36

約数和(自身を含む): 38654280

約数和(自身を除く): 18349132

約数列:

[1, 2, 4, 19, 38, 53, 71, 76, 106, 142, 212, 284, 1007, 1349, 2014, 2698, 3763, 4028, 5041, 5396, 7526, 10082, 15052, 20164, 71497, 95779, 142994, 191558, 267173, 285988, 383116, 534346, 1068692, 5076287, 10152574, 20305148]

約数ペア:

[(1, 20305148), (2, 10152574), (4, 5076287), (19, 1068692), (38, 534346), (53, 383116), (71, 285988), (76, 267173), (106, 191558), (142, 142994), (212, 95779), (284, 71497), (1007, 20164), (1349, 15052), (2014, 10082), (2698, 7526), (3763, 5396), (4028, 5041)]