19676925

素因数分解:

$3^5\times 5^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 37914240

約数和(自身を除く): 18237315

約数列:

[1, 3, 5, 9, 15, 25, 27, 41, 45, 75, 79, 81, 123, 135, 205, 225, 237, 243, 369, 395, 405, 615, 675, 711, 1025, 1107, 1185, 1215, 1845, 1975, 2025, 2133, 3075, 3239, 3321, 3555, 5535, 5925, 6075, 6399, 9225, 9717, 9963, 10665, 16195, 16605, 17775, 19197, 27675, 29151, 31995, 48585, 49815, 53325, 80975, 83025, 87453, 95985, 145755, 159975, 242925, 249075, 262359, 437265, 479925, 728775, 787077, 1311795, 2186325, 3935385, 6558975, 19676925]

約数ペア:

[(1, 19676925), (3, 6558975), (5, 3935385), (9, 2186325), (15, 1311795), (25, 787077), (27, 728775), (41, 479925), (45, 437265), (75, 262359), (79, 249075), (81, 242925), (123, 159975), (135, 145755), (205, 95985), (225, 87453), (237, 83025), (243, 80975), (369, 53325), (395, 49815), (405, 48585), (615, 31995), (675, 29151), (711, 27675), (1025, 19197), (1107, 17775), (1185, 16605), (1215, 16195), (1845, 10665), (1975, 9963), (2025, 9717), (2133, 9225), (3075, 6399), (3239, 6075), (3321, 5925), (3555, 5535)]