20157449920

素因数分解:

$2^6\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1709}}^1$

素因数の和:1827

約数の個数: 224

約数和(自身を含む): 52537766400

約数和(自身を除く): 32380316480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 32, 40, 41, 58, 62, 64, 80, 82, 116, 124, 145, 155, 160, 164, 205, 232, 248, 290, 310, 320, 328, 410, 464, 496, 580, 620, 656, 820, 899, 928, 992, 1160, 1189, 1240, 1271, 1312, 1640, 1709, 1798, 1856, 1984, 2320, 2378, 2480, 2542, 2624, 3280, 3418, 3596, 4495, 4640, 4756, 4960, 5084, 5945, 6355, 6560, 6836, 7192, 8545, 8990, 9280, 9512, 9920, 10168, 11890, 12710, 13120, 13672, 14384, 17090, 17980, 19024, 20336, 23780, 25420, 27344, 28768, 34180, 35960, 36859, 38048, 40672, 47560, 49561, 50840, 52979, 54688, 57536, 68360, 70069, 71920, 73718, 76096, 81344, 95120, 99122, 101680, 105958, 109376, 136720, 140138, 143840, 147436, 184295, 190240, 198244, 203360, 211916, 247805, 264895, 273440, 280276, 287680, 294872, 350345, 368590, 380480, 396488, 406720, 423832, 495610, 529790, 546880, 560552, 589744, 700690, 737180, 792976, 847664, 991220, 1059580, 1121104, 1179488, 1401380, 1474360, 1536391, 1585952, 1695328, 1982440, 2032001, 2119160, 2172139, 2242208, 2358976, 2802760, 2948720, 3072782, 3171904, 3390656, 3964880, 4064002, 4238320, 4344278, 4484416, 5605520, 5897440, 6145564, 7681955, 7929760, 8128004, 8476640, 8688556, 10160005, 10860695, 11211040, 11794880, 12291128, 15363910, 15859520, 16256008, 16953280, 17377112, 20320010, 21721390, 22422080, 24582256, 30727820, 32512016, 34754224, 40640020, 43442780, 49164512, 61455640, 62992031, 65024032, 69508448, 81280040, 86885560, 98329024, 122911280, 125984062, 130048064, 139016896, 162560080, 173771120, 245822560, 251968124, 314960155, 325120160, 347542240, 491645120, 503936248, 629920310, 650240320, 695084480, 1007872496, 1259840620, 2015744992, 2519681240, 4031489984, 5039362480, 10078724960, 20157449920]

約数ペア:

[(1, 20157449920), (2, 10078724960), (4, 5039362480), (5, 4031489984), (8, 2519681240), (10, 2015744992), (16, 1259840620), (20, 1007872496), (29, 695084480), (31, 650240320), (32, 629920310), (40, 503936248), (41, 491645120), (58, 347542240), (62, 325120160), (64, 314960155), (80, 251968124), (82, 245822560), (116, 173771120), (124, 162560080), (145, 139016896), (155, 130048064), (160, 125984062), (164, 122911280), (205, 98329024), (232, 86885560), (248, 81280040), (290, 69508448), (310, 65024032), (320, 62992031), (328, 61455640), (410, 49164512), (464, 43442780), (496, 40640020), (580, 34754224), (620, 32512016), (656, 30727820), (820, 24582256), (899, 22422080), (928, 21721390), (992, 20320010), (1160, 17377112), (1189, 16953280), (1240, 16256008), (1271, 15859520), (1312, 15363910), (1640, 12291128), (1709, 11794880), (1798, 11211040), (1856, 10860695), (1984, 10160005), (2320, 8688556), (2378, 8476640), (2480, 8128004), (2542, 7929760), (2624, 7681955), (3280, 6145564), (3418, 5897440), (3596, 5605520), (4495, 4484416), (4640, 4344278), (4756, 4238320), (4960, 4064002), (5084, 3964880), (5945, 3390656), (6355, 3171904), (6560, 3072782), (6836, 2948720), (7192, 2802760), (8545, 2358976), (8990, 2242208), (9280, 2172139), (9512, 2119160), (9920, 2032001), (10168, 1982440), (11890, 1695328), (12710, 1585952), (13120, 1536391), (13672, 1474360), (14384, 1401380), (17090, 1179488), (17980, 1121104), (19024, 1059580), (20336, 991220), (23780, 847664), (25420, 792976), (27344, 737180), (28768, 700690), (34180, 589744), (35960, 560552), (36859, 546880), (38048, 529790), (40672, 495610), (47560, 423832), (49561, 406720), (50840, 396488), (52979, 380480), (54688, 368590), (57536, 350345), (68360, 294872), (70069, 287680), (71920, 280276), (73718, 273440), (76096, 264895), (81344, 247805), (95120, 211916), (99122, 203360), (101680, 198244), (105958, 190240), (109376, 184295), (136720, 147436), (140138, 143840)]