20753790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{359}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 31500930

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 47, 82, 94, 123, 141, 205, 235, 246, 282, 359, 410, 470, 615, 705, 718, 1077, 1230, 1410, 1795, 1927, 2154, 3590, 3854, 5385, 5781, 9635, 10770, 11562, 14719, 16873, 19270, 28905, 29438, 33746, 44157, 50619, 57810, 73595, 84365, 88314, 101238, 147190, 168730, 220785, 253095, 441570, 506190, 691793, 1383586, 2075379, 3458965, 4150758, 6917930, 10376895, 20753790]

約数ペア:

[(1, 20753790), (2, 10376895), (3, 6917930), (5, 4150758), (6, 3458965), (10, 2075379), (15, 1383586), (30, 691793), (41, 506190), (47, 441570), (82, 253095), (94, 220785), (123, 168730), (141, 147190), (205, 101238), (235, 88314), (246, 84365), (282, 73595), (359, 57810), (410, 50619), (470, 44157), (615, 33746), (705, 29438), (718, 28905), (1077, 19270), (1230, 16873), (1410, 14719), (1795, 11562), (1927, 10770), (2154, 9635), (3590, 5781), (3854, 5385)]