20145728500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{23827}}^1$

素因数の和:23954

約数の個数: 96

約数和(自身を含む): 46836316800

約数和(自身を除く): 26690588300

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 89, 95, 100, 125, 178, 190, 250, 356, 380, 445, 475, 500, 890, 950, 1691, 1780, 1900, 2225, 2375, 3382, 4450, 4750, 6764, 8455, 8900, 9500, 11125, 16910, 22250, 23827, 33820, 42275, 44500, 47654, 84550, 95308, 119135, 169100, 211375, 238270, 422750, 452713, 476540, 595675, 845500, 905426, 1191350, 1810852, 2120603, 2263565, 2382700, 2978375, 4241206, 4527130, 5956750, 8482412, 9054260, 10603015, 11317825, 11913500, 21206030, 22635650, 40291457, 42412060, 45271300, 53015075, 56589125, 80582914, 106030150, 113178250, 161165828, 201457285, 212060300, 226356500, 265075375, 402914570, 530150750, 805829140, 1007286425, 1060301500, 2014572850, 4029145700, 5036432125, 10072864250, 20145728500]

約数ペア:

[(1, 20145728500), (2, 10072864250), (4, 5036432125), (5, 4029145700), (10, 2014572850), (19, 1060301500), (20, 1007286425), (25, 805829140), (38, 530150750), (50, 402914570), (76, 265075375), (89, 226356500), (95, 212060300), (100, 201457285), (125, 161165828), (178, 113178250), (190, 106030150), (250, 80582914), (356, 56589125), (380, 53015075), (445, 45271300), (475, 42412060), (500, 40291457), (890, 22635650), (950, 21206030), (1691, 11913500), (1780, 11317825), (1900, 10603015), (2225, 9054260), (2375, 8482412), (3382, 5956750), (4450, 4527130), (4750, 4241206), (6764, 2978375), (8455, 2382700), (8900, 2263565), (9500, 2120603), (11125, 1810852), (16910, 1191350), (22250, 905426), (23827, 845500), (33820, 595675), (42275, 476540), (44500, 452713), (47654, 422750), (84550, 238270), (95308, 211375), (119135, 169100)]