20749500

素因数分解:

$2^2\times 3^3\times 5^3\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:110

約数の個数: 192

約数和(自身を含む): 70761600

約数和(自身を除く): 50012100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 29, 30, 36, 45, 50, 53, 54, 58, 60, 75, 87, 90, 100, 106, 108, 116, 125, 135, 145, 150, 159, 174, 180, 212, 225, 250, 261, 265, 270, 290, 300, 318, 348, 375, 435, 450, 477, 500, 522, 530, 540, 580, 636, 675, 725, 750, 783, 795, 870, 900, 954, 1044, 1060, 1125, 1305, 1325, 1350, 1431, 1450, 1500, 1537, 1566, 1590, 1740, 1908, 2175, 2250, 2385, 2610, 2650, 2700, 2862, 2900, 3074, 3132, 3180, 3375, 3625, 3915, 3975, 4350, 4500, 4611, 4770, 5220, 5300, 5724, 6148, 6525, 6625, 6750, 7155, 7250, 7685, 7830, 7950, 8700, 9222, 9540, 10875, 11925, 13050, 13250, 13500, 13833, 14310, 14500, 15370, 15660, 15900, 18444, 19575, 19875, 21750, 23055, 23850, 26100, 26500, 27666, 28620, 30740, 32625, 35775, 38425, 39150, 39750, 41499, 43500, 46110, 47700, 55332, 59625, 65250, 69165, 71550, 76850, 78300, 79500, 82998, 92220, 97875, 115275, 119250, 130500, 138330, 143100, 153700, 165996, 178875, 192125, 195750, 207495, 230550, 238500, 276660, 345825, 357750, 384250, 391500, 414990, 461100, 576375, 691650, 715500, 768500, 829980, 1037475, 1152750, 1383300, 1729125, 2074950, 2305500, 3458250, 4149900, 5187375, 6916500, 10374750, 20749500]

約数ペア:

[(1, 20749500), (2, 10374750), (3, 6916500), (4, 5187375), (5, 4149900), (6, 3458250), (9, 2305500), (10, 2074950), (12, 1729125), (15, 1383300), (18, 1152750), (20, 1037475), (25, 829980), (27, 768500), (29, 715500), (30, 691650), (36, 576375), (45, 461100), (50, 414990), (53, 391500), (54, 384250), (58, 357750), (60, 345825), (75, 276660), (87, 238500), (90, 230550), (100, 207495), (106, 195750), (108, 192125), (116, 178875), (125, 165996), (135, 153700), (145, 143100), (150, 138330), (159, 130500), (174, 119250), (180, 115275), (212, 97875), (225, 92220), (250, 82998), (261, 79500), (265, 78300), (270, 76850), (290, 71550), (300, 69165), (318, 65250), (348, 59625), (375, 55332), (435, 47700), (450, 46110), (477, 43500), (500, 41499), (522, 39750), (530, 39150), (540, 38425), (580, 35775), (636, 32625), (675, 30740), (725, 28620), (750, 27666), (783, 26500), (795, 26100), (870, 23850), (900, 23055), (954, 21750), (1044, 19875), (1060, 19575), (1125, 18444), (1305, 15900), (1325, 15660), (1350, 15370), (1431, 14500), (1450, 14310), (1500, 13833), (1537, 13500), (1566, 13250), (1590, 13050), (1740, 11925), (1908, 10875), (2175, 9540), (2250, 9222), (2385, 8700), (2610, 7950), (2650, 7830), (2700, 7685), (2862, 7250), (2900, 7155), (3074, 6750), (3132, 6625), (3180, 6525), (3375, 6148), (3625, 5724), (3915, 5300), (3975, 5220), (4350, 4770), (4500, 4611)]