19693890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1723}}^1$

素因数の和:1863

約数の個数: 48

約数和(自身を含む): 51637248

約数和(自身を除く): 31943358

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 127, 254, 381, 635, 762, 1143, 1270, 1723, 1905, 2286, 3446, 3810, 5169, 5715, 8615, 10338, 11430, 15507, 17230, 25845, 31014, 51690, 77535, 155070, 218821, 437642, 656463, 1094105, 1312926, 1969389, 2188210, 3282315, 3938778, 6564630, 9846945, 19693890]

約数ペア:

[(1, 19693890), (2, 9846945), (3, 6564630), (5, 3938778), (6, 3282315), (9, 2188210), (10, 1969389), (15, 1312926), (18, 1094105), (30, 656463), (45, 437642), (90, 218821), (127, 155070), (254, 77535), (381, 51690), (635, 31014), (762, 25845), (1143, 17230), (1270, 15507), (1723, 11430), (1905, 10338), (2286, 8615), (3446, 5715), (3810, 5169)]