208568890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{15461}}^1$

素因数の和:15558

約数の個数: 32

約数和(自身を含む): 400775040

約数和(自身を除く): 192206150

約数列:

[1, 2, 5, 10, 19, 38, 71, 95, 142, 190, 355, 710, 1349, 2698, 6745, 13490, 15461, 30922, 77305, 154610, 293759, 587518, 1097731, 1468795, 2195462, 2937590, 5488655, 10977310, 20856889, 41713778, 104284445, 208568890]

約数ペア:

[(1, 208568890), (2, 104284445), (5, 41713778), (10, 20856889), (19, 10977310), (38, 5488655), (71, 2937590), (95, 2195462), (142, 1468795), (190, 1097731), (355, 587518), (710, 293759), (1349, 154610), (2698, 77305), (6745, 30922), (13490, 15461)]