21878612480

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{449807}}^1$

素因数の和:449849

約数の個数: 80

約数和(自身を含む): 55218430080

約数和(自身を除く): 33339817600

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 512, 608, 640, 760, 1216, 1280, 1520, 2432, 2560, 3040, 4864, 6080, 9728, 12160, 24320, 48640, 449807, 899614, 1799228, 2249035, 3598456, 4498070, 7196912, 8546333, 8996140, 14393824, 17092666, 17992280, 28787648, 34185332, 35984560, 42731665, 57575296, 68370664, 71969120, 85463330, 115150592, 136741328, 143938240, 170926660, 230301184, 273482656, 287876480, 341853320, 546965312, 575752960, 683706640, 1093930624, 1151505920, 1367413280, 2187861248, 2734826560, 4375722496, 5469653120, 10939306240, 21878612480]

約数ペア:

[(1, 21878612480), (2, 10939306240), (4, 5469653120), (5, 4375722496), (8, 2734826560), (10, 2187861248), (16, 1367413280), (19, 1151505920), (20, 1093930624), (32, 683706640), (38, 575752960), (40, 546965312), (64, 341853320), (76, 287876480), (80, 273482656), (95, 230301184), (128, 170926660), (152, 143938240), (160, 136741328), (190, 115150592), (256, 85463330), (304, 71969120), (320, 68370664), (380, 57575296), (512, 42731665), (608, 35984560), (640, 34185332), (760, 28787648), (1216, 17992280), (1280, 17092666), (1520, 14393824), (2432, 8996140), (2560, 8546333), (3040, 7196912), (4864, 4498070), (6080, 3598456), (9728, 2249035), (12160, 1799228), (24320, 899614), (48640, 449807)]