19842975

素因数分解:

$3^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:302

約数の個数: 60

約数和(自身を含む): 37810080

約数和(自身を除く): 17967105

約数列:

[1, 3, 5, 9, 15, 25, 27, 41, 45, 75, 81, 123, 135, 205, 225, 239, 369, 405, 615, 675, 717, 1025, 1107, 1195, 1845, 2025, 2151, 3075, 3321, 3585, 5535, 5975, 6453, 9225, 9799, 10755, 16605, 17925, 19359, 27675, 29397, 32265, 48995, 53775, 83025, 88191, 96795, 146985, 161325, 244975, 264573, 440955, 483975, 734925, 793719, 1322865, 2204775, 3968595, 6614325, 19842975]

約数ペア:

[(1, 19842975), (3, 6614325), (5, 3968595), (9, 2204775), (15, 1322865), (25, 793719), (27, 734925), (41, 483975), (45, 440955), (75, 264573), (81, 244975), (123, 161325), (135, 146985), (205, 96795), (225, 88191), (239, 83025), (369, 53775), (405, 48995), (615, 32265), (675, 29397), (717, 27675), (1025, 19359), (1107, 17925), (1195, 16605), (1845, 10755), (2025, 9799), (2151, 9225), (3075, 6453), (3321, 5975), (3585, 5535)]