78314240

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:158

約数の個数: 144

約数和(自身を含む): 205299360

約数和(自身を除く): 126985120

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 59, 61, 64, 68, 80, 85, 118, 122, 128, 136, 160, 170, 236, 244, 256, 272, 295, 305, 320, 340, 472, 488, 544, 590, 610, 640, 680, 944, 976, 1003, 1037, 1088, 1180, 1220, 1280, 1360, 1888, 1952, 2006, 2074, 2176, 2360, 2440, 2720, 3599, 3776, 3904, 4012, 4148, 4352, 4720, 4880, 5015, 5185, 5440, 7198, 7552, 7808, 8024, 8296, 9440, 9760, 10030, 10370, 10880, 14396, 15104, 15616, 16048, 16592, 17995, 18880, 19520, 20060, 20740, 21760, 28792, 32096, 33184, 35990, 37760, 39040, 40120, 41480, 57584, 61183, 64192, 66368, 71980, 75520, 78080, 80240, 82960, 115168, 122366, 128384, 132736, 143960, 160480, 165920, 230336, 244732, 256768, 265472, 287920, 305915, 320960, 331840, 460672, 489464, 575840, 611830, 641920, 663680, 921344, 978928, 1151680, 1223660, 1283840, 1327360, 1957856, 2303360, 2447320, 3915712, 4606720, 4894640, 7831424, 9789280, 15662848, 19578560, 39157120, 78314240]

約数ペア:

[(1, 78314240), (2, 39157120), (4, 19578560), (5, 15662848), (8, 9789280), (10, 7831424), (16, 4894640), (17, 4606720), (20, 3915712), (32, 2447320), (34, 2303360), (40, 1957856), (59, 1327360), (61, 1283840), (64, 1223660), (68, 1151680), (80, 978928), (85, 921344), (118, 663680), (122, 641920), (128, 611830), (136, 575840), (160, 489464), (170, 460672), (236, 331840), (244, 320960), (256, 305915), (272, 287920), (295, 265472), (305, 256768), (320, 244732), (340, 230336), (472, 165920), (488, 160480), (544, 143960), (590, 132736), (610, 128384), (640, 122366), (680, 115168), (944, 82960), (976, 80240), (1003, 78080), (1037, 75520), (1088, 71980), (1180, 66368), (1220, 64192), (1280, 61183), (1360, 57584), (1888, 41480), (1952, 40120), (2006, 39040), (2074, 37760), (2176, 35990), (2360, 33184), (2440, 32096), (2720, 28792), (3599, 21760), (3776, 20740), (3904, 20060), (4012, 19520), (4148, 18880), (4352, 17995), (4720, 16592), (4880, 16048), (5015, 15616), (5185, 15104), (5440, 14396), (7198, 10880), (7552, 10370), (7808, 10030), (8024, 9760), (8296, 9440)]