19005407020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{220327}}^1$

素因数の和:220582

約数の個数: 48

約数和(自身を含む): 42197218560

約数和(自身を除く): 23191811540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 227, 380, 454, 908, 1135, 2270, 4313, 4540, 8626, 17252, 21565, 43130, 86260, 220327, 440654, 881308, 1101635, 2203270, 4186213, 4406540, 8372426, 16744852, 20931065, 41862130, 50014229, 83724260, 100028458, 200056916, 250071145, 500142290, 950270351, 1000284580, 1900540702, 3801081404, 4751351755, 9502703510, 19005407020]

約数ペア:

[(1, 19005407020), (2, 9502703510), (4, 4751351755), (5, 3801081404), (10, 1900540702), (19, 1000284580), (20, 950270351), (38, 500142290), (76, 250071145), (95, 200056916), (190, 100028458), (227, 83724260), (380, 50014229), (454, 41862130), (908, 20931065), (1135, 16744852), (2270, 8372426), (4313, 4406540), (4540, 4186213), (8626, 2203270), (17252, 1101635), (21565, 881308), (43130, 440654), (86260, 220327)]