20219813200

素因数分解:

$2^4\times 5^2\times {\mathrm{113}}^1\times {\mathrm{439}}^1\times {\mathrm{1019}}^1$

素因数の和:1589

約数の個数: 120

約数和(自身を含む): 49167835200

約数和(自身を除く): 28948022000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 113, 200, 226, 400, 439, 452, 565, 878, 904, 1019, 1130, 1756, 1808, 2038, 2195, 2260, 2825, 3512, 4076, 4390, 4520, 5095, 5650, 7024, 8152, 8780, 9040, 10190, 10975, 11300, 16304, 17560, 20380, 21950, 22600, 25475, 35120, 40760, 43900, 45200, 49607, 50950, 81520, 87800, 99214, 101900, 115147, 175600, 198428, 203800, 230294, 248035, 396856, 407600, 447341, 460588, 496070, 575735, 793712, 894682, 921176, 992140, 1151470, 1240175, 1789364, 1842352, 1984280, 2236705, 2302940, 2480350, 2878675, 3578728, 3968560, 4473410, 4605880, 4960700, 5757350, 7157456, 8946820, 9211760, 9921400, 11183525, 11514700, 17893640, 19842800, 22367050, 23029400, 35787280, 44734100, 46058800, 50549533, 89468200, 101099066, 178936400, 202198132, 252747665, 404396264, 505495330, 808792528, 1010990660, 1263738325, 2021981320, 2527476650, 4043962640, 5054953300, 10109906600, 20219813200]

約数ペア:

[(1, 20219813200), (2, 10109906600), (4, 5054953300), (5, 4043962640), (8, 2527476650), (10, 2021981320), (16, 1263738325), (20, 1010990660), (25, 808792528), (40, 505495330), (50, 404396264), (80, 252747665), (100, 202198132), (113, 178936400), (200, 101099066), (226, 89468200), (400, 50549533), (439, 46058800), (452, 44734100), (565, 35787280), (878, 23029400), (904, 22367050), (1019, 19842800), (1130, 17893640), (1756, 11514700), (1808, 11183525), (2038, 9921400), (2195, 9211760), (2260, 8946820), (2825, 7157456), (3512, 5757350), (4076, 4960700), (4390, 4605880), (4520, 4473410), (5095, 3968560), (5650, 3578728), (7024, 2878675), (8152, 2480350), (8780, 2302940), (9040, 2236705), (10190, 1984280), (10975, 1842352), (11300, 1789364), (16304, 1240175), (17560, 1151470), (20380, 992140), (21950, 921176), (22600, 894682), (25475, 793712), (35120, 575735), (40760, 496070), (43900, 460588), (45200, 447341), (49607, 407600), (50950, 396856), (81520, 248035), (87800, 230294), (99214, 203800), (101900, 198428), (115147, 175600)]