20248490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:195

約数の個数: 48

約数和(自身を含む): 39502080

約数和(自身を除く): 19253590

約数列:

[1, 2, 5, 10, 19, 38, 71, 79, 95, 142, 158, 190, 355, 361, 395, 710, 722, 790, 1349, 1501, 1805, 2698, 3002, 3610, 5609, 6745, 7505, 11218, 13490, 15010, 25631, 28045, 28519, 51262, 56090, 57038, 106571, 128155, 142595, 213142, 256310, 285190, 532855, 1065710, 2024849, 4049698, 10124245, 20248490]

約数ペア:

[(1, 20248490), (2, 10124245), (5, 4049698), (10, 2024849), (19, 1065710), (38, 532855), (71, 285190), (79, 256310), (95, 213142), (142, 142595), (158, 128155), (190, 106571), (355, 57038), (361, 56090), (395, 51262), (710, 28519), (722, 28045), (790, 25631), (1349, 15010), (1501, 13490), (1805, 11218), (2698, 7505), (3002, 6745), (3610, 5609)]