19903690

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{487}}^1$

素因数の和:622

約数の個数: 32

約数和(自身を含む): 37033344

約数和(自身を除く): 17129654

約数列:

[1, 2, 5, 10, 61, 67, 122, 134, 305, 335, 487, 610, 670, 974, 2435, 4087, 4870, 8174, 20435, 29707, 32629, 40870, 59414, 65258, 148535, 163145, 297070, 326290, 1990369, 3980738, 9951845, 19903690]

約数ペア:

[(1, 19903690), (2, 9951845), (5, 3980738), (10, 1990369), (61, 326290), (67, 297070), (122, 163145), (134, 148535), (305, 65258), (335, 59414), (487, 40870), (610, 32629), (670, 29707), (974, 20435), (2435, 8174), (4087, 4870)]