16720223525

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{163643}}^1$

素因数の和:163781

約数の個数: 24

約数和(自身を含む): 21387616224

約数和(自身を除く): 4667392699

約数列:

[1, 5, 25, 61, 67, 305, 335, 1525, 1675, 4087, 20435, 102175, 163643, 818215, 4091075, 9982223, 10964081, 49911115, 54820405, 249555575, 274102025, 668808941, 3344044705, 16720223525]

約数ペア:

[(1, 16720223525), (5, 3344044705), (25, 668808941), (61, 274102025), (67, 249555575), (305, 54820405), (335, 49911115), (1525, 10964081), (1675, 9982223), (4087, 4091075), (20435, 818215), (102175, 163643)]