81376960

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2137}}^1$

素因数の和:2178

約数の個数: 112

約数和(自身を含む): 234598464

約数和(自身を除く): 153221504

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 64, 68, 70, 80, 85, 112, 119, 136, 140, 160, 170, 224, 238, 272, 280, 320, 340, 448, 476, 544, 560, 595, 680, 952, 1088, 1120, 1190, 1360, 1904, 2137, 2240, 2380, 2720, 3808, 4274, 4760, 5440, 7616, 8548, 9520, 10685, 14959, 17096, 19040, 21370, 29918, 34192, 36329, 38080, 42740, 59836, 68384, 72658, 74795, 85480, 119672, 136768, 145316, 149590, 170960, 181645, 239344, 254303, 290632, 299180, 341920, 363290, 478688, 508606, 581264, 598360, 683840, 726580, 957376, 1017212, 1162528, 1196720, 1271515, 1453160, 2034424, 2325056, 2393440, 2543030, 2906320, 4068848, 4786880, 5086060, 5812640, 8137696, 10172120, 11625280, 16275392, 20344240, 40688480, 81376960]

約数ペア:

[(1, 81376960), (2, 40688480), (4, 20344240), (5, 16275392), (7, 11625280), (8, 10172120), (10, 8137696), (14, 5812640), (16, 5086060), (17, 4786880), (20, 4068848), (28, 2906320), (32, 2543030), (34, 2393440), (35, 2325056), (40, 2034424), (56, 1453160), (64, 1271515), (68, 1196720), (70, 1162528), (80, 1017212), (85, 957376), (112, 726580), (119, 683840), (136, 598360), (140, 581264), (160, 508606), (170, 478688), (224, 363290), (238, 341920), (272, 299180), (280, 290632), (320, 254303), (340, 239344), (448, 181645), (476, 170960), (544, 149590), (560, 145316), (595, 136768), (680, 119672), (952, 85480), (1088, 74795), (1120, 72658), (1190, 68384), (1360, 59836), (1904, 42740), (2137, 38080), (2240, 36329), (2380, 34192), (2720, 29918), (3808, 21370), (4274, 19040), (4760, 17096), (5440, 14959), (7616, 10685), (8548, 9520)]