31689340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{937}}^1$

素因数の和:1054

約数の個数: 48

約数和(自身を含む): 70912800

約数和(自身を除く): 39223460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 937, 1691, 1780, 1874, 3382, 3748, 4685, 6764, 8455, 9370, 16910, 17803, 18740, 33820, 35606, 71212, 83393, 89015, 166786, 178030, 333572, 356060, 416965, 833930, 1584467, 1667860, 3168934, 6337868, 7922335, 15844670, 31689340]

約数ペア:

[(1, 31689340), (2, 15844670), (4, 7922335), (5, 6337868), (10, 3168934), (19, 1667860), (20, 1584467), (38, 833930), (76, 416965), (89, 356060), (95, 333572), (178, 178030), (190, 166786), (356, 89015), (380, 83393), (445, 71212), (890, 35606), (937, 33820), (1691, 18740), (1780, 17803), (1874, 16910), (3382, 9370), (3748, 8455), (4685, 6764)]