16578145

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:201

約数の個数: 32

約数和(自身を含む): 22208256

約数和(自身を除く): 5630111

約数列:

[1, 5, 17, 41, 67, 71, 85, 205, 335, 355, 697, 1139, 1207, 2747, 2911, 3485, 4757, 5695, 6035, 13735, 14555, 23785, 46699, 49487, 80869, 195037, 233495, 247435, 404345, 975185, 3315629, 16578145]

約数ペア:

[(1, 16578145), (5, 3315629), (17, 975185), (41, 404345), (67, 247435), (71, 233495), (85, 195037), (205, 80869), (335, 49487), (355, 46699), (697, 23785), (1139, 14555), (1207, 13735), (2747, 6035), (2911, 5695), (3485, 4757)]