67641840

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{13421}}^1$

素因数の和:13447

約数の個数: 120

約数和(自身を含む): 259635168

約数和(自身を除く): 191993328

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 13421, 26842, 40263, 53684, 67105, 80526, 93947, 107368, 120789, 134210, 161052, 187894, 201315, 214736, 241578, 268420, 281841, 322104, 375788, 402630, 469735, 483156, 536840, 563682, 603945, 644208, 751576, 805260, 845523, 939470, 966312, 1073680, 1127364, 1207890, 1409205, 1503152, 1610520, 1691046, 1878940, 1932624, 2254728, 2415780, 2818410, 3221040, 3382092, 3757880, 4227615, 4509456, 4831560, 5636820, 6764184, 7515760, 8455230, 9663120, 11273640, 13528368, 16910460, 22547280, 33820920, 67641840]

約数ペア:

[(1, 67641840), (2, 33820920), (3, 22547280), (4, 16910460), (5, 13528368), (6, 11273640), (7, 9663120), (8, 8455230), (9, 7515760), (10, 6764184), (12, 5636820), (14, 4831560), (15, 4509456), (16, 4227615), (18, 3757880), (20, 3382092), (21, 3221040), (24, 2818410), (28, 2415780), (30, 2254728), (35, 1932624), (36, 1878940), (40, 1691046), (42, 1610520), (45, 1503152), (48, 1409205), (56, 1207890), (60, 1127364), (63, 1073680), (70, 966312), (72, 939470), (80, 845523), (84, 805260), (90, 751576), (105, 644208), (112, 603945), (120, 563682), (126, 536840), (140, 483156), (144, 469735), (168, 402630), (180, 375788), (210, 322104), (240, 281841), (252, 268420), (280, 241578), (315, 214736), (336, 201315), (360, 187894), (420, 161052), (504, 134210), (560, 120789), (630, 107368), (720, 93947), (840, 80526), (1008, 67105), (1260, 53684), (1680, 40263), (2520, 26842), (5040, 13421)]