20261520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{263}}^1$

素因数の和:389

約数の個数: 120

約数和(自身を含む): 68942016

約数和(自身を除く): 48680496

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 107, 120, 144, 180, 214, 240, 263, 321, 360, 428, 526, 535, 642, 720, 789, 856, 963, 1052, 1070, 1284, 1315, 1578, 1605, 1712, 1926, 2104, 2140, 2367, 2568, 2630, 3156, 3210, 3852, 3945, 4208, 4280, 4734, 4815, 5136, 5260, 6312, 6420, 7704, 7890, 8560, 9468, 9630, 10520, 11835, 12624, 12840, 15408, 15780, 18936, 19260, 21040, 23670, 25680, 28141, 31560, 37872, 38520, 47340, 56282, 63120, 77040, 84423, 94680, 112564, 140705, 168846, 189360, 225128, 253269, 281410, 337692, 422115, 450256, 506538, 562820, 675384, 844230, 1013076, 1125640, 1266345, 1350768, 1688460, 2026152, 2251280, 2532690, 3376920, 4052304, 5065380, 6753840, 10130760, 20261520]

約数ペア:

[(1, 20261520), (2, 10130760), (3, 6753840), (4, 5065380), (5, 4052304), (6, 3376920), (8, 2532690), (9, 2251280), (10, 2026152), (12, 1688460), (15, 1350768), (16, 1266345), (18, 1125640), (20, 1013076), (24, 844230), (30, 675384), (36, 562820), (40, 506538), (45, 450256), (48, 422115), (60, 337692), (72, 281410), (80, 253269), (90, 225128), (107, 189360), (120, 168846), (144, 140705), (180, 112564), (214, 94680), (240, 84423), (263, 77040), (321, 63120), (360, 56282), (428, 47340), (526, 38520), (535, 37872), (642, 31560), (720, 28141), (789, 25680), (856, 23670), (963, 21040), (1052, 19260), (1070, 18936), (1284, 15780), (1315, 15408), (1578, 12840), (1605, 12624), (1712, 11835), (1926, 10520), (2104, 9630), (2140, 9468), (2367, 8560), (2568, 7890), (2630, 7704), (3156, 6420), (3210, 6312), (3852, 5260), (3945, 5136), (4208, 4815), (4280, 4734)]