80640525

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{21943}}^1$

素因数の和:21970

約数の個数: 36

約数和(自身を含む): 155100192

約数和(自身を除く): 74459667

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 147, 175, 245, 525, 735, 1225, 3675, 21943, 65829, 109715, 153601, 329145, 460803, 548575, 768005, 1075207, 1645725, 2304015, 3225621, 3840025, 5376035, 11520075, 16128105, 26880175, 80640525]

約数ペア:

[(1, 80640525), (3, 26880175), (5, 16128105), (7, 11520075), (15, 5376035), (21, 3840025), (25, 3225621), (35, 2304015), (49, 1645725), (75, 1075207), (105, 768005), (147, 548575), (175, 460803), (245, 329145), (525, 153601), (735, 109715), (1225, 65829), (3675, 21943)]