19450340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10687}}^1$

素因数の和:10716

約数の個数: 48

約数和(自身を含む): 50276352

約数和(自身を除く): 30826012

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 10687, 21374, 42748, 53435, 74809, 106870, 138931, 149618, 213740, 277862, 299236, 374045, 555724, 694655, 748090, 972517, 1389310, 1496180, 1945034, 2778620, 3890068, 4862585, 9725170, 19450340]

約数ペア:

[(1, 19450340), (2, 9725170), (4, 4862585), (5, 3890068), (7, 2778620), (10, 1945034), (13, 1496180), (14, 1389310), (20, 972517), (26, 748090), (28, 694655), (35, 555724), (52, 374045), (65, 299236), (70, 277862), (91, 213740), (130, 149618), (140, 138931), (182, 106870), (260, 74809), (364, 53435), (455, 42748), (910, 21374), (1820, 10687)]