78921920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3203}}^1$

素因数の和:3238

約数の個数: 112

約数和(自身を含む): 234379008

約数和(自身を除く): 155457088

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 320, 352, 385, 440, 448, 560, 616, 704, 770, 880, 1120, 1232, 1540, 1760, 2240, 2464, 3080, 3203, 3520, 4928, 6160, 6406, 12320, 12812, 16015, 22421, 24640, 25624, 32030, 35233, 44842, 51248, 64060, 70466, 89684, 102496, 112105, 128120, 140932, 176165, 179368, 204992, 224210, 246631, 256240, 281864, 352330, 358736, 448420, 493262, 512480, 563728, 704660, 717472, 896840, 986524, 1024960, 1127456, 1233155, 1409320, 1434944, 1793680, 1973048, 2254912, 2466310, 2818640, 3587360, 3946096, 4932620, 5637280, 7174720, 7892192, 9865240, 11274560, 15784384, 19730480, 39460960, 78921920]

約数ペア:

[(1, 78921920), (2, 39460960), (4, 19730480), (5, 15784384), (7, 11274560), (8, 9865240), (10, 7892192), (11, 7174720), (14, 5637280), (16, 4932620), (20, 3946096), (22, 3587360), (28, 2818640), (32, 2466310), (35, 2254912), (40, 1973048), (44, 1793680), (55, 1434944), (56, 1409320), (64, 1233155), (70, 1127456), (77, 1024960), (80, 986524), (88, 896840), (110, 717472), (112, 704660), (140, 563728), (154, 512480), (160, 493262), (176, 448420), (220, 358736), (224, 352330), (280, 281864), (308, 256240), (320, 246631), (352, 224210), (385, 204992), (440, 179368), (448, 176165), (560, 140932), (616, 128120), (704, 112105), (770, 102496), (880, 89684), (1120, 70466), (1232, 64060), (1540, 51248), (1760, 44842), (2240, 35233), (2464, 32030), (3080, 25624), (3203, 24640), (3520, 22421), (4928, 16015), (6160, 12812), (6406, 12320)]