395280767660

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10639}}^1\times {\mathrm{20873}}^1$

素因数の和:31610

約数の個数: 48

約数和(自身を含む): 839535580800

約数和(自身を除く): 444254813140

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 10639, 20873, 21278, 41746, 42556, 53195, 83492, 104365, 106390, 208730, 212780, 417460, 946871, 1857697, 1893742, 3715394, 3787484, 4734355, 7430788, 9288485, 9468710, 18576970, 18937420, 37153940, 222067847, 444135694, 888271388, 1110339235, 2220678470, 4441356940, 19764038383, 39528076766, 79056153532, 98820191915, 197640383830, 395280767660]

約数ペア:

[(1, 395280767660), (2, 197640383830), (4, 98820191915), (5, 79056153532), (10, 39528076766), (20, 19764038383), (89, 4441356940), (178, 2220678470), (356, 1110339235), (445, 888271388), (890, 444135694), (1780, 222067847), (10639, 37153940), (20873, 18937420), (21278, 18576970), (41746, 9468710), (42556, 9288485), (53195, 7430788), (83492, 4734355), (104365, 3787484), (106390, 3715394), (208730, 1893742), (212780, 1857697), (417460, 946871)]