81217535

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{349}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 114576000

約数和(自身を除く): 33358465

約数列:

[1, 5, 7, 35, 61, 109, 305, 349, 427, 545, 763, 1745, 2135, 2443, 3815, 6649, 12215, 21289, 33245, 38041, 46543, 106445, 149023, 190205, 232715, 266287, 745115, 1331435, 2320501, 11602505, 16243507, 81217535]

約数ペア:

[(1, 81217535), (5, 16243507), (7, 11602505), (35, 2320501), (61, 1331435), (109, 745115), (305, 266287), (349, 232715), (427, 190205), (545, 149023), (763, 106445), (1745, 46543), (2135, 38041), (2443, 33245), (3815, 21289), (6649, 12215)]