18268985

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 26611200

約数和(自身を除く): 8342215

約数列:

[1, 5, 7, 29, 35, 41, 145, 203, 205, 287, 439, 1015, 1189, 1435, 2195, 3073, 5945, 8323, 12731, 15365, 17999, 41615, 63655, 89117, 89995, 125993, 445585, 521971, 629965, 2609855, 3653797, 18268985]

約数ペア:

[(1, 18268985), (5, 3653797), (7, 2609855), (29, 629965), (35, 521971), (41, 445585), (145, 125993), (203, 89995), (205, 89117), (287, 63655), (439, 41615), (1015, 17999), (1189, 15365), (1435, 12731), (2195, 8323), (3073, 5945)]