31011160

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 73094400

約数和(自身を除く): 42083240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 89, 124, 155, 178, 248, 281, 310, 356, 445, 562, 620, 712, 890, 1124, 1240, 1405, 1780, 2248, 2759, 2810, 3560, 5518, 5620, 8711, 11036, 11240, 13795, 17422, 22072, 25009, 27590, 34844, 43555, 50018, 55180, 69688, 87110, 100036, 110360, 125045, 174220, 200072, 250090, 348440, 500180, 775279, 1000360, 1550558, 3101116, 3876395, 6202232, 7752790, 15505580, 31011160]

約数ペア:

[(1, 31011160), (2, 15505580), (4, 7752790), (5, 6202232), (8, 3876395), (10, 3101116), (20, 1550558), (31, 1000360), (40, 775279), (62, 500180), (89, 348440), (124, 250090), (155, 200072), (178, 174220), (248, 125045), (281, 110360), (310, 100036), (356, 87110), (445, 69688), (562, 55180), (620, 50018), (712, 43555), (890, 34844), (1124, 27590), (1240, 25009), (1405, 22072), (1780, 17422), (2248, 13795), (2759, 11240), (2810, 11036), (3560, 8711), (5518, 5620)]