51587890

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{643}}^1$

素因数の和:834

約数の個数: 32

約数和(自身を含む): 95147136

約数和(自身を除く): 43559246

約数列:

[1, 2, 5, 10, 71, 113, 142, 226, 355, 565, 643, 710, 1130, 1286, 3215, 6430, 8023, 16046, 40115, 45653, 72659, 80230, 91306, 145318, 228265, 363295, 456530, 726590, 5158789, 10317578, 25793945, 51587890]

約数ペア:

[(1, 51587890), (2, 25793945), (5, 10317578), (10, 5158789), (71, 726590), (113, 456530), (142, 363295), (226, 228265), (355, 145318), (565, 91306), (643, 80230), (710, 72659), (1130, 45653), (1286, 40115), (3215, 16046), (6430, 8023)]