16781423360

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1008499}}^1$

素因数の和:1008533

約数の個数: 72

約数和(自身を含む): 43288854000

約数和(自身を除く): 26507430640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 16640, 1008499, 2016998, 4033996, 5042495, 8067992, 10084990, 13110487, 16135984, 20169980, 26220974, 32271968, 40339960, 52441948, 64543936, 65552435, 80679920, 104883896, 129087872, 131104870, 161359840, 209767792, 258175744, 262209740, 322719680, 419535584, 524419480, 645439360, 839071168, 1048838960, 1290878720, 1678142336, 2097677920, 3356284672, 4195355840, 8390711680, 16781423360]

約数ペア:

[(1, 16781423360), (2, 8390711680), (4, 4195355840), (5, 3356284672), (8, 2097677920), (10, 1678142336), (13, 1290878720), (16, 1048838960), (20, 839071168), (26, 645439360), (32, 524419480), (40, 419535584), (52, 322719680), (64, 262209740), (65, 258175744), (80, 209767792), (104, 161359840), (128, 131104870), (130, 129087872), (160, 104883896), (208, 80679920), (256, 65552435), (260, 64543936), (320, 52441948), (416, 40339960), (520, 32271968), (640, 26220974), (832, 20169980), (1040, 16135984), (1280, 13110487), (1664, 10084990), (2080, 8067992), (3328, 5042495), (4160, 4033996), (8320, 2016998), (16640, 1008499)]