18235820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1297}}^1$

素因数の和:1362

約数の個数: 48

約数和(自身を含む): 41432160

約数和(自身を除く): 23196340

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 1297, 1406, 2594, 2812, 3515, 5188, 6485, 7030, 12970, 14060, 24643, 25940, 47989, 49286, 95978, 98572, 123215, 191956, 239945, 246430, 479890, 492860, 911791, 959780, 1823582, 3647164, 4558955, 9117910, 18235820]

約数ペア:

[(1, 18235820), (2, 9117910), (4, 4558955), (5, 3647164), (10, 1823582), (19, 959780), (20, 911791), (37, 492860), (38, 479890), (74, 246430), (76, 239945), (95, 191956), (148, 123215), (185, 98572), (190, 95978), (370, 49286), (380, 47989), (703, 25940), (740, 24643), (1297, 14060), (1406, 12970), (2594, 7030), (2812, 6485), (3515, 5188)]