21338880

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5557}}^1$

素因数の和:5581

約数の個数: 72

約数和(自身を含む): 68163312

約数和(自身を除く): 46824432

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5557, 11114, 16671, 22228, 27785, 33342, 44456, 55570, 66684, 83355, 88912, 111140, 133368, 166710, 177824, 222280, 266736, 333420, 355648, 444560, 533472, 666840, 711296, 889120, 1066944, 1333680, 1422592, 1778240, 2133888, 2667360, 3556480, 4267776, 5334720, 7112960, 10669440, 21338880]

約数ペア:

[(1, 21338880), (2, 10669440), (3, 7112960), (4, 5334720), (5, 4267776), (6, 3556480), (8, 2667360), (10, 2133888), (12, 1778240), (15, 1422592), (16, 1333680), (20, 1066944), (24, 889120), (30, 711296), (32, 666840), (40, 533472), (48, 444560), (60, 355648), (64, 333420), (80, 266736), (96, 222280), (120, 177824), (128, 166710), (160, 133368), (192, 111140), (240, 88912), (256, 83355), (320, 66684), (384, 55570), (480, 44456), (640, 33342), (768, 27785), (960, 22228), (1280, 16671), (1920, 11114), (3840, 5557)]