81736206820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{367}}^1\times {\mathrm{271603}}^1$

素因数の和:272020

約数の個数: 48

約数和(自身を含む): 176312279808

約数和(自身を除く): 94576072988

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 367, 410, 734, 820, 1468, 1835, 3670, 7340, 15047, 30094, 60188, 75235, 150470, 271603, 300940, 543206, 1086412, 1358015, 2716030, 5432060, 11135723, 22271446, 44542892, 55678615, 99678301, 111357230, 199356602, 222714460, 398713204, 498391505, 996783010, 1993566020, 4086810341, 8173620682, 16347241364, 20434051705, 40868103410, 81736206820]

約数ペア:

[(1, 81736206820), (2, 40868103410), (4, 20434051705), (5, 16347241364), (10, 8173620682), (20, 4086810341), (41, 1993566020), (82, 996783010), (164, 498391505), (205, 398713204), (367, 222714460), (410, 199356602), (734, 111357230), (820, 99678301), (1468, 55678615), (1835, 44542892), (3670, 22271446), (7340, 11135723), (15047, 5432060), (30094, 2716030), (60188, 1358015), (75235, 1086412), (150470, 543206), (271603, 300940)]