20215243790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^2\times {\mathrm{239}}^1\times {\mathrm{547}}^1$

素因数の和:894

約数の個数: 96

約数和(自身を含む): 42745052160

約数和(自身を除く): 22529808370

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 70, 94, 235, 239, 329, 470, 478, 547, 658, 1094, 1195, 1645, 1673, 2209, 2390, 2735, 3290, 3346, 3829, 4418, 5470, 7658, 8365, 11045, 11233, 15463, 16730, 19145, 22090, 22466, 25709, 30926, 38290, 51418, 56165, 77315, 78631, 112330, 128545, 130733, 154630, 157262, 179963, 257090, 261466, 359926, 393155, 527951, 653665, 786310, 899815, 915131, 1055902, 1208323, 1307330, 1799630, 1830262, 2416646, 2639755, 3695657, 4575655, 5279510, 6041615, 6144451, 7391314, 8458261, 9151310, 12083230, 12288902, 16916522, 18478285, 30722255, 36956570, 42291305, 43011157, 61444510, 84582610, 86022314, 215055785, 288789197, 430111570, 577578394, 1443945985, 2021524379, 2887891970, 4043048758, 10107621895, 20215243790]

約数ペア:

[(1, 20215243790), (2, 10107621895), (5, 4043048758), (7, 2887891970), (10, 2021524379), (14, 1443945985), (35, 577578394), (47, 430111570), (70, 288789197), (94, 215055785), (235, 86022314), (239, 84582610), (329, 61444510), (470, 43011157), (478, 42291305), (547, 36956570), (658, 30722255), (1094, 18478285), (1195, 16916522), (1645, 12288902), (1673, 12083230), (2209, 9151310), (2390, 8458261), (2735, 7391314), (3290, 6144451), (3346, 6041615), (3829, 5279510), (4418, 4575655), (5470, 3695657), (7658, 2639755), (8365, 2416646), (11045, 1830262), (11233, 1799630), (15463, 1307330), (16730, 1208323), (19145, 1055902), (22090, 915131), (22466, 899815), (25709, 786310), (30926, 653665), (38290, 527951), (51418, 393155), (56165, 359926), (77315, 261466), (78631, 257090), (112330, 179963), (128545, 157262), (130733, 154630)]