18370625

素因数分解:

$5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:76

約数の個数: 80

約数和(自身を含む): 31489920

約数和(自身を除く): 13119295

約数列:

[1, 5, 7, 13, 17, 19, 25, 35, 65, 85, 91, 95, 119, 125, 133, 175, 221, 247, 323, 325, 425, 455, 475, 595, 625, 665, 875, 1105, 1235, 1547, 1615, 1625, 1729, 2125, 2261, 2275, 2375, 2975, 3325, 4199, 4375, 5525, 6175, 7735, 8075, 8125, 8645, 10625, 11305, 11375, 11875, 14875, 16625, 20995, 27625, 29393, 30875, 38675, 40375, 43225, 56525, 56875, 74375, 83125, 104975, 138125, 146965, 154375, 193375, 201875, 216125, 282625, 524875, 734825, 966875, 1080625, 1413125, 2624375, 3674125, 18370625]

約数ペア:

[(1, 18370625), (5, 3674125), (7, 2624375), (13, 1413125), (17, 1080625), (19, 966875), (25, 734825), (35, 524875), (65, 282625), (85, 216125), (91, 201875), (95, 193375), (119, 154375), (125, 146965), (133, 138125), (175, 104975), (221, 83125), (247, 74375), (323, 56875), (325, 56525), (425, 43225), (455, 40375), (475, 38675), (595, 30875), (625, 29393), (665, 27625), (875, 20995), (1105, 16625), (1235, 14875), (1547, 11875), (1615, 11375), (1625, 11305), (1729, 10625), (2125, 8645), (2261, 8125), (2275, 8075), (2375, 7735), (2975, 6175), (3325, 5525), (4199, 4375)]