18781120

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3089}}^1$

素因数の和:3125

約数の個数: 56

約数和(自身を含む): 47091600

約数和(自身を除く): 28310480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 3089, 6080, 6178, 12356, 15445, 24712, 30890, 49424, 58691, 61780, 98848, 117382, 123560, 197696, 234764, 247120, 293455, 469528, 494240, 586910, 939056, 988480, 1173820, 1878112, 2347640, 3756224, 4695280, 9390560, 18781120]

約数ペア:

[(1, 18781120), (2, 9390560), (4, 4695280), (5, 3756224), (8, 2347640), (10, 1878112), (16, 1173820), (19, 988480), (20, 939056), (32, 586910), (38, 494240), (40, 469528), (64, 293455), (76, 247120), (80, 234764), (95, 197696), (152, 123560), (160, 117382), (190, 98848), (304, 61780), (320, 58691), (380, 49424), (608, 30890), (760, 24712), (1216, 15445), (1520, 12356), (3040, 6178), (3089, 6080)]