158362880

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:372

約数の個数: 144

約数和(自身を含む): 423058944

約数和(自身を除く): 264696064

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 307, 310, 320, 403, 416, 496, 520, 614, 620, 640, 806, 832, 992, 1040, 1228, 1240, 1280, 1535, 1612, 1664, 1984, 2015, 2080, 2456, 2480, 3070, 3224, 3328, 3968, 3991, 4030, 4160, 4912, 4960, 6140, 6448, 7936, 7982, 8060, 8320, 9517, 9824, 9920, 12280, 12896, 15964, 16120, 16640, 19034, 19648, 19840, 19955, 24560, 25792, 31928, 32240, 38068, 39296, 39680, 39910, 47585, 49120, 51584, 63856, 64480, 76136, 78592, 79820, 95170, 98240, 103168, 123721, 127712, 128960, 152272, 159640, 190340, 196480, 247442, 255424, 257920, 304544, 319280, 380680, 392960, 494884, 510848, 515840, 609088, 618605, 638560, 761360, 989768, 1021696, 1218176, 1237210, 1277120, 1522720, 1979536, 2436352, 2474420, 2554240, 3045440, 3959072, 4948840, 5108480, 6090880, 7918144, 9897680, 12181760, 15836288, 19795360, 31672576, 39590720, 79181440, 158362880]

約数ペア:

[(1, 158362880), (2, 79181440), (4, 39590720), (5, 31672576), (8, 19795360), (10, 15836288), (13, 12181760), (16, 9897680), (20, 7918144), (26, 6090880), (31, 5108480), (32, 4948840), (40, 3959072), (52, 3045440), (62, 2554240), (64, 2474420), (65, 2436352), (80, 1979536), (104, 1522720), (124, 1277120), (128, 1237210), (130, 1218176), (155, 1021696), (160, 989768), (208, 761360), (248, 638560), (256, 618605), (260, 609088), (307, 515840), (310, 510848), (320, 494884), (403, 392960), (416, 380680), (496, 319280), (520, 304544), (614, 257920), (620, 255424), (640, 247442), (806, 196480), (832, 190340), (992, 159640), (1040, 152272), (1228, 128960), (1240, 127712), (1280, 123721), (1535, 103168), (1612, 98240), (1664, 95170), (1984, 79820), (2015, 78592), (2080, 76136), (2456, 64480), (2480, 63856), (3070, 51584), (3224, 49120), (3328, 47585), (3968, 39910), (3991, 39680), (4030, 39296), (4160, 38068), (4912, 32240), (4960, 31928), (6140, 25792), (6448, 24560), (7936, 19955), (7982, 19840), (8060, 19648), (8320, 19034), (9517, 16640), (9824, 16120), (9920, 15964), (12280, 12896)]