128800606720

素因数分解:

$2^9\times 5^1\times {\mathrm{353}}^1\times {\mathrm{142529}}^1$

素因数の和:142905

約数の個数: 80

約数和(自身を含む): 309696595560

約数和(自身を除く): 180895988840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 353, 512, 640, 706, 1280, 1412, 1765, 2560, 2824, 3530, 5648, 7060, 11296, 14120, 22592, 28240, 45184, 56480, 90368, 112960, 142529, 180736, 225920, 285058, 451840, 570116, 712645, 903680, 1140232, 1425290, 2280464, 2850580, 4560928, 5701160, 9121856, 11402320, 18243712, 22804640, 36487424, 45609280, 50312737, 72974848, 91218560, 100625474, 182437120, 201250948, 251563685, 364874240, 402501896, 503127370, 805003792, 1006254740, 1610007584, 2012509480, 3220015168, 4025018960, 6440030336, 8050037920, 12880060672, 16100075840, 25760121344, 32200151680, 64400303360, 128800606720]

約数ペア:

[(1, 128800606720), (2, 64400303360), (4, 32200151680), (5, 25760121344), (8, 16100075840), (10, 12880060672), (16, 8050037920), (20, 6440030336), (32, 4025018960), (40, 3220015168), (64, 2012509480), (80, 1610007584), (128, 1006254740), (160, 805003792), (256, 503127370), (320, 402501896), (353, 364874240), (512, 251563685), (640, 201250948), (706, 182437120), (1280, 100625474), (1412, 91218560), (1765, 72974848), (2560, 50312737), (2824, 45609280), (3530, 36487424), (5648, 22804640), (7060, 18243712), (11296, 11402320), (14120, 9121856), (22592, 5701160), (28240, 4560928), (45184, 2850580), (56480, 2280464), (90368, 1425290), (112960, 1140232), (142529, 903680), (180736, 712645), (225920, 570116), (285058, 451840)]