81492775

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{317}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 125866944

約数和(自身を除く): 44374169

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 113, 175, 317, 325, 455, 565, 791, 1469, 1585, 2219, 2275, 2825, 3955, 4121, 7345, 7925, 10283, 11095, 19775, 20605, 28847, 35821, 36725, 51415, 55475, 103025, 144235, 179105, 250747, 257075, 465673, 721175, 895525, 1253735, 2328365, 3259711, 6268675, 11641825, 16298555, 81492775]

約数ペア:

[(1, 81492775), (5, 16298555), (7, 11641825), (13, 6268675), (25, 3259711), (35, 2328365), (65, 1253735), (91, 895525), (113, 721175), (175, 465673), (317, 257075), (325, 250747), (455, 179105), (565, 144235), (791, 103025), (1469, 55475), (1585, 51415), (2219, 36725), (2275, 35821), (2825, 28847), (3955, 20605), (4121, 19775), (7345, 11095), (7925, 10283)]