18067840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:172

約数の個数: 128

約数和(自身を含む): 51163200

約数和(自身を除く): 33095360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 64, 70, 74, 80, 109, 112, 128, 140, 148, 160, 185, 218, 224, 259, 280, 296, 320, 370, 436, 448, 518, 545, 560, 592, 640, 740, 763, 872, 896, 1036, 1090, 1120, 1184, 1295, 1480, 1526, 1744, 2072, 2180, 2240, 2368, 2590, 2960, 3052, 3488, 3815, 4033, 4144, 4360, 4480, 4736, 5180, 5920, 6104, 6976, 7630, 8066, 8288, 8720, 10360, 11840, 12208, 13952, 15260, 16132, 16576, 17440, 20165, 20720, 23680, 24416, 28231, 30520, 32264, 33152, 34880, 40330, 41440, 48832, 56462, 61040, 64528, 69760, 80660, 82880, 97664, 112924, 122080, 129056, 141155, 161320, 165760, 225848, 244160, 258112, 282310, 322640, 451696, 488320, 516224, 564620, 645280, 903392, 1129240, 1290560, 1806784, 2258480, 2581120, 3613568, 4516960, 9033920, 18067840]

約数ペア:

[(1, 18067840), (2, 9033920), (4, 4516960), (5, 3613568), (7, 2581120), (8, 2258480), (10, 1806784), (14, 1290560), (16, 1129240), (20, 903392), (28, 645280), (32, 564620), (35, 516224), (37, 488320), (40, 451696), (56, 322640), (64, 282310), (70, 258112), (74, 244160), (80, 225848), (109, 165760), (112, 161320), (128, 141155), (140, 129056), (148, 122080), (160, 112924), (185, 97664), (218, 82880), (224, 80660), (259, 69760), (280, 64528), (296, 61040), (320, 56462), (370, 48832), (436, 41440), (448, 40330), (518, 34880), (545, 33152), (560, 32264), (592, 30520), (640, 28231), (740, 24416), (763, 23680), (872, 20720), (896, 20165), (1036, 17440), (1090, 16576), (1120, 16132), (1184, 15260), (1295, 13952), (1480, 12208), (1526, 11840), (1744, 10360), (2072, 8720), (2180, 8288), (2240, 8066), (2368, 7630), (2590, 6976), (2960, 6104), (3052, 5920), (3488, 5180), (3815, 4736), (4033, 4480), (4144, 4360)]