20008620

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1$

素因数の和:226

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 46035540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 81, 90, 92, 108, 115, 135, 138, 162, 179, 180, 207, 230, 243, 270, 276, 324, 345, 358, 405, 414, 460, 486, 537, 540, 621, 690, 716, 810, 828, 895, 972, 1035, 1074, 1215, 1242, 1380, 1611, 1620, 1790, 1863, 2070, 2148, 2430, 2484, 2685, 3105, 3222, 3580, 3726, 4117, 4140, 4833, 4860, 5370, 5589, 6210, 6444, 7452, 8055, 8234, 9315, 9666, 10740, 11178, 12351, 12420, 14499, 16110, 16468, 18630, 19332, 20585, 22356, 24165, 24702, 27945, 28998, 32220, 37053, 37260, 41170, 43497, 48330, 49404, 55890, 57996, 61755, 72495, 74106, 82340, 86994, 96660, 111159, 111780, 123510, 144990, 148212, 173988, 185265, 217485, 222318, 247020, 289980, 333477, 370530, 434970, 444636, 555795, 666954, 741060, 869940, 1000431, 1111590, 1333908, 1667385, 2000862, 2223180, 3334770, 4001724, 5002155, 6669540, 10004310, 20008620]

約数ペア:

[(1, 20008620), (2, 10004310), (3, 6669540), (4, 5002155), (5, 4001724), (6, 3334770), (9, 2223180), (10, 2000862), (12, 1667385), (15, 1333908), (18, 1111590), (20, 1000431), (23, 869940), (27, 741060), (30, 666954), (36, 555795), (45, 444636), (46, 434970), (54, 370530), (60, 333477), (69, 289980), (81, 247020), (90, 222318), (92, 217485), (108, 185265), (115, 173988), (135, 148212), (138, 144990), (162, 123510), (179, 111780), (180, 111159), (207, 96660), (230, 86994), (243, 82340), (270, 74106), (276, 72495), (324, 61755), (345, 57996), (358, 55890), (405, 49404), (414, 48330), (460, 43497), (486, 41170), (537, 37260), (540, 37053), (621, 32220), (690, 28998), (716, 27945), (810, 24702), (828, 24165), (895, 22356), (972, 20585), (1035, 19332), (1074, 18630), (1215, 16468), (1242, 16110), (1380, 14499), (1611, 12420), (1620, 12351), (1790, 11178), (1863, 10740), (2070, 9666), (2148, 9315), (2430, 8234), (2484, 8055), (2685, 7452), (3105, 6444), (3222, 6210), (3580, 5589), (3726, 5370), (4117, 4860), (4140, 4833)]