678979840

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^2$

素因数の和:205

約数の個数: 216

約数和(自身を含む): 2052404928

約数和(自身を除く): 1373425088

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 83, 88, 110, 112, 128, 140, 154, 160, 166, 176, 220, 224, 256, 280, 308, 320, 332, 352, 385, 415, 440, 448, 560, 581, 616, 640, 664, 704, 770, 830, 880, 896, 913, 1120, 1162, 1232, 1280, 1328, 1408, 1540, 1660, 1760, 1792, 1826, 2240, 2324, 2464, 2656, 2816, 2905, 3080, 3320, 3520, 3652, 4480, 4565, 4648, 4928, 5312, 5810, 6160, 6391, 6640, 6889, 7040, 7304, 8960, 9130, 9296, 9856, 10624, 11620, 12320, 12782, 13280, 13778, 14080, 14608, 18260, 18592, 19712, 21248, 23240, 24640, 25564, 26560, 27556, 29216, 31955, 34445, 36520, 37184, 46480, 48223, 49280, 51128, 53120, 55112, 58432, 63910, 68890, 73040, 74368, 75779, 92960, 96446, 98560, 102256, 106240, 110224, 116864, 127820, 137780, 146080, 148736, 151558, 185920, 192892, 204512, 220448, 233728, 241115, 255640, 275560, 292160, 303116, 371840, 378895, 385784, 409024, 440896, 482230, 511280, 530453, 551120, 584320, 606232, 743680, 757790, 771568, 818048, 881792, 964460, 1022560, 1060906, 1102240, 1168640, 1212464, 1515580, 1543136, 1636096, 1763584, 1928920, 2045120, 2121812, 2204480, 2424928, 2652265, 3031160, 3086272, 3857840, 4090240, 4243624, 4408960, 4849856, 5304530, 6062320, 6172544, 7715680, 8180480, 8487248, 8817920, 9699712, 10609060, 12124640, 12345088, 15431360, 16974496, 19399424, 21218120, 24249280, 30862720, 33948992, 42436240, 48498560, 61725440, 67897984, 84872480, 96997120, 135795968, 169744960, 339489920, 678979840]

約数ペア:

[(1, 678979840), (2, 339489920), (4, 169744960), (5, 135795968), (7, 96997120), (8, 84872480), (10, 67897984), (11, 61725440), (14, 48498560), (16, 42436240), (20, 33948992), (22, 30862720), (28, 24249280), (32, 21218120), (35, 19399424), (40, 16974496), (44, 15431360), (55, 12345088), (56, 12124640), (64, 10609060), (70, 9699712), (77, 8817920), (80, 8487248), (83, 8180480), (88, 7715680), (110, 6172544), (112, 6062320), (128, 5304530), (140, 4849856), (154, 4408960), (160, 4243624), (166, 4090240), (176, 3857840), (220, 3086272), (224, 3031160), (256, 2652265), (280, 2424928), (308, 2204480), (320, 2121812), (332, 2045120), (352, 1928920), (385, 1763584), (415, 1636096), (440, 1543136), (448, 1515580), (560, 1212464), (581, 1168640), (616, 1102240), (640, 1060906), (664, 1022560), (704, 964460), (770, 881792), (830, 818048), (880, 771568), (896, 757790), (913, 743680), (1120, 606232), (1162, 584320), (1232, 551120), (1280, 530453), (1328, 511280), (1408, 482230), (1540, 440896), (1660, 409024), (1760, 385784), (1792, 378895), (1826, 371840), (2240, 303116), (2324, 292160), (2464, 275560), (2656, 255640), (2816, 241115), (2905, 233728), (3080, 220448), (3320, 204512), (3520, 192892), (3652, 185920), (4480, 151558), (4565, 148736), (4648, 146080), (4928, 137780), (5312, 127820), (5810, 116864), (6160, 110224), (6391, 106240), (6640, 102256), (6889, 98560), (7040, 96446), (7304, 92960), (8960, 75779), (9130, 74368), (9296, 73040), (9856, 68890), (10624, 63910), (11620, 58432), (12320, 55112), (12782, 53120), (13280, 51128), (13778, 49280), (14080, 48223), (14608, 46480), (18260, 37184), (18592, 36520), (19712, 34445), (21248, 31955), (23240, 29216), (24640, 27556), (25564, 26560)]