20325200

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:110

約数の個数: 180

約数和(自身を含む): 61131132

約数和(自身を除く): 40805932

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 25, 28, 34, 35, 40, 49, 50, 56, 61, 68, 70, 80, 85, 98, 100, 112, 119, 122, 136, 140, 170, 175, 196, 200, 238, 244, 245, 272, 280, 305, 340, 350, 392, 400, 425, 427, 476, 488, 490, 560, 595, 610, 680, 700, 784, 833, 850, 854, 952, 976, 980, 1037, 1190, 1220, 1225, 1360, 1400, 1525, 1666, 1700, 1708, 1904, 1960, 2074, 2135, 2380, 2440, 2450, 2800, 2975, 2989, 3050, 3332, 3400, 3416, 3920, 4148, 4165, 4270, 4760, 4880, 4900, 5185, 5950, 5978, 6100, 6664, 6800, 6832, 7259, 8296, 8330, 8540, 9520, 9800, 10370, 10675, 11900, 11956, 12200, 13328, 14518, 14945, 16592, 16660, 17080, 19600, 20740, 20825, 21350, 23800, 23912, 24400, 25925, 29036, 29890, 33320, 34160, 36295, 41480, 41650, 42700, 47600, 47824, 50813, 51850, 58072, 59780, 66640, 72590, 74725, 82960, 83300, 85400, 101626, 103700, 116144, 119560, 145180, 149450, 166600, 170800, 181475, 203252, 207400, 239120, 254065, 290360, 298900, 333200, 362950, 406504, 414800, 508130, 580720, 597800, 725900, 813008, 1016260, 1195600, 1270325, 1451800, 2032520, 2540650, 2903600, 4065040, 5081300, 10162600, 20325200]

約数ペア:

[(1, 20325200), (2, 10162600), (4, 5081300), (5, 4065040), (7, 2903600), (8, 2540650), (10, 2032520), (14, 1451800), (16, 1270325), (17, 1195600), (20, 1016260), (25, 813008), (28, 725900), (34, 597800), (35, 580720), (40, 508130), (49, 414800), (50, 406504), (56, 362950), (61, 333200), (68, 298900), (70, 290360), (80, 254065), (85, 239120), (98, 207400), (100, 203252), (112, 181475), (119, 170800), (122, 166600), (136, 149450), (140, 145180), (170, 119560), (175, 116144), (196, 103700), (200, 101626), (238, 85400), (244, 83300), (245, 82960), (272, 74725), (280, 72590), (305, 66640), (340, 59780), (350, 58072), (392, 51850), (400, 50813), (425, 47824), (427, 47600), (476, 42700), (488, 41650), (490, 41480), (560, 36295), (595, 34160), (610, 33320), (680, 29890), (700, 29036), (784, 25925), (833, 24400), (850, 23912), (854, 23800), (952, 21350), (976, 20825), (980, 20740), (1037, 19600), (1190, 17080), (1220, 16660), (1225, 16592), (1360, 14945), (1400, 14518), (1525, 13328), (1666, 12200), (1700, 11956), (1708, 11900), (1904, 10675), (1960, 10370), (2074, 9800), (2135, 9520), (2380, 8540), (2440, 8330), (2450, 8296), (2800, 7259), (2975, 6832), (2989, 6800), (3050, 6664), (3332, 6100), (3400, 5978), (3416, 5950), (3920, 5185), (4148, 4900), (4165, 4880), (4270, 4760)]