215408085

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1\times {\mathrm{1613}}^1$

素因数の和:1957

約数の個数: 32

約数和(自身を含む): 357920640

約数和(自身を除く): 142512555

約数列:

[1, 3, 5, 15, 29, 87, 145, 307, 435, 921, 1535, 1613, 4605, 4839, 8065, 8903, 24195, 26709, 44515, 46777, 133545, 140331, 233885, 495191, 701655, 1485573, 2475955, 7427865, 14360539, 43081617, 71802695, 215408085]

約数ペア:

[(1, 215408085), (3, 71802695), (5, 43081617), (15, 14360539), (29, 7427865), (87, 2475955), (145, 1485573), (307, 701655), (435, 495191), (921, 233885), (1535, 140331), (1613, 133545), (4605, 46777), (4839, 44515), (8065, 26709), (8903, 24195)]