28821800

素因数分解:

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

素因数の和:220

約数の個数: 144

約数和(自身を含む): 83013660

約数和(自身を除く): 54191860

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 25, 28, 34, 35, 40, 49, 50, 56, 68, 70, 85, 98, 100, 119, 136, 140, 170, 173, 175, 196, 200, 238, 245, 280, 340, 346, 350, 392, 425, 476, 490, 595, 680, 692, 700, 833, 850, 865, 952, 980, 1190, 1211, 1225, 1384, 1400, 1666, 1700, 1730, 1960, 2380, 2422, 2450, 2941, 2975, 3332, 3400, 3460, 4165, 4325, 4760, 4844, 4900, 5882, 5950, 6055, 6664, 6920, 8330, 8477, 8650, 9688, 9800, 11764, 11900, 12110, 14705, 16660, 16954, 17300, 20587, 20825, 23528, 23800, 24220, 29410, 30275, 33320, 33908, 34600, 41174, 41650, 42385, 48440, 58820, 60550, 67816, 73525, 82348, 83300, 84770, 102935, 117640, 121100, 144109, 147050, 164696, 166600, 169540, 205870, 211925, 242200, 288218, 294100, 339080, 411740, 423850, 514675, 576436, 588200, 720545, 823480, 847700, 1029350, 1152872, 1441090, 1695400, 2058700, 2882180, 3602725, 4117400, 5764360, 7205450, 14410900, 28821800]

約数ペア:

[(1, 28821800), (2, 14410900), (4, 7205450), (5, 5764360), (7, 4117400), (8, 3602725), (10, 2882180), (14, 2058700), (17, 1695400), (20, 1441090), (25, 1152872), (28, 1029350), (34, 847700), (35, 823480), (40, 720545), (49, 588200), (50, 576436), (56, 514675), (68, 423850), (70, 411740), (85, 339080), (98, 294100), (100, 288218), (119, 242200), (136, 211925), (140, 205870), (170, 169540), (173, 166600), (175, 164696), (196, 147050), (200, 144109), (238, 121100), (245, 117640), (280, 102935), (340, 84770), (346, 83300), (350, 82348), (392, 73525), (425, 67816), (476, 60550), (490, 58820), (595, 48440), (680, 42385), (692, 41650), (700, 41174), (833, 34600), (850, 33908), (865, 33320), (952, 30275), (980, 29410), (1190, 24220), (1211, 23800), (1225, 23528), (1384, 20825), (1400, 20587), (1666, 17300), (1700, 16954), (1730, 16660), (1960, 14705), (2380, 12110), (2422, 11900), (2450, 11764), (2941, 9800), (2975, 9688), (3332, 8650), (3400, 8477), (3460, 8330), (4165, 6920), (4325, 6664), (4760, 6055), (4844, 5950), (4900, 5882)]