20587000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1$

素因数の和:218

約数の個数: 128

約数和(自身を含む): 58631040

約数和(自身を除く): 38044040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 25, 28, 34, 35, 40, 50, 56, 68, 70, 85, 100, 119, 125, 136, 140, 170, 173, 175, 200, 238, 250, 280, 340, 346, 350, 425, 476, 500, 595, 680, 692, 700, 850, 865, 875, 952, 1000, 1190, 1211, 1384, 1400, 1700, 1730, 1750, 2125, 2380, 2422, 2941, 2975, 3400, 3460, 3500, 4250, 4325, 4760, 4844, 5882, 5950, 6055, 6920, 7000, 8500, 8650, 9688, 11764, 11900, 12110, 14705, 14875, 17000, 17300, 20587, 21625, 23528, 23800, 24220, 29410, 29750, 30275, 34600, 41174, 43250, 48440, 58820, 59500, 60550, 73525, 82348, 86500, 102935, 117640, 119000, 121100, 147050, 151375, 164696, 173000, 205870, 242200, 294100, 302750, 367625, 411740, 514675, 588200, 605500, 735250, 823480, 1029350, 1211000, 1470500, 2058700, 2573375, 2941000, 4117400, 5146750, 10293500, 20587000]

約数ペア:

[(1, 20587000), (2, 10293500), (4, 5146750), (5, 4117400), (7, 2941000), (8, 2573375), (10, 2058700), (14, 1470500), (17, 1211000), (20, 1029350), (25, 823480), (28, 735250), (34, 605500), (35, 588200), (40, 514675), (50, 411740), (56, 367625), (68, 302750), (70, 294100), (85, 242200), (100, 205870), (119, 173000), (125, 164696), (136, 151375), (140, 147050), (170, 121100), (173, 119000), (175, 117640), (200, 102935), (238, 86500), (250, 82348), (280, 73525), (340, 60550), (346, 59500), (350, 58820), (425, 48440), (476, 43250), (500, 41174), (595, 34600), (680, 30275), (692, 29750), (700, 29410), (850, 24220), (865, 23800), (875, 23528), (952, 21625), (1000, 20587), (1190, 17300), (1211, 17000), (1384, 14875), (1400, 14705), (1700, 12110), (1730, 11900), (1750, 11764), (2125, 9688), (2380, 8650), (2422, 8500), (2941, 7000), (2975, 6920), (3400, 6055), (3460, 5950), (3500, 5882), (4250, 4844), (4325, 4760)]