28754560

素因数分解:

$2^7\times 5^1\times {\mathrm{179}}^1\times {\mathrm{251}}^1$

素因数の和:449

約数の個数: 64

約数和(自身を含む): 69400800

約数和(自身を除く): 40646240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 179, 251, 320, 358, 502, 640, 716, 895, 1004, 1255, 1432, 1790, 2008, 2510, 2864, 3580, 4016, 5020, 5728, 7160, 8032, 10040, 11456, 14320, 16064, 20080, 22912, 28640, 32128, 40160, 44929, 57280, 80320, 89858, 114560, 160640, 179716, 224645, 359432, 449290, 718864, 898580, 1437728, 1797160, 2875456, 3594320, 5750912, 7188640, 14377280, 28754560]

約数ペア:

[(1, 28754560), (2, 14377280), (4, 7188640), (5, 5750912), (8, 3594320), (10, 2875456), (16, 1797160), (20, 1437728), (32, 898580), (40, 718864), (64, 449290), (80, 359432), (128, 224645), (160, 179716), (179, 160640), (251, 114560), (320, 89858), (358, 80320), (502, 57280), (640, 44929), (716, 40160), (895, 32128), (1004, 28640), (1255, 22912), (1432, 20080), (1790, 16064), (2008, 14320), (2510, 11456), (2864, 10040), (3580, 8032), (4016, 7160), (5020, 5728)]