20822860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1481}}^1$

素因数の和:1546

約数の個数: 48

約数和(自身を含む): 47305440

約数和(自身を除く): 26482580

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 1406, 1481, 2812, 2962, 3515, 5924, 7030, 7405, 14060, 14810, 28139, 29620, 54797, 56278, 109594, 112556, 140695, 219188, 273985, 281390, 547970, 562780, 1041143, 1095940, 2082286, 4164572, 5205715, 10411430, 20822860]

約数ペア:

[(1, 20822860), (2, 10411430), (4, 5205715), (5, 4164572), (10, 2082286), (19, 1095940), (20, 1041143), (37, 562780), (38, 547970), (74, 281390), (76, 273985), (95, 219188), (148, 140695), (185, 112556), (190, 109594), (370, 56278), (380, 54797), (703, 29620), (740, 28139), (1406, 14810), (1481, 14060), (2812, 7405), (2962, 7030), (3515, 5924)]