28775235

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{659}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 47900160

約数和(自身を除く): 19124925

約数列:

[1, 3, 5, 15, 41, 71, 123, 205, 213, 355, 615, 659, 1065, 1977, 2911, 3295, 8733, 9885, 14555, 27019, 43665, 46789, 81057, 135095, 140367, 233945, 405285, 701835, 1918349, 5755047, 9591745, 28775235]

約数ペア:

[(1, 28775235), (3, 9591745), (5, 5755047), (15, 1918349), (41, 701835), (71, 405285), (123, 233945), (205, 140367), (213, 135095), (355, 81057), (615, 46789), (659, 43665), (1065, 27019), (1977, 14555), (2911, 9885), (3295, 8733)]