77415520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{409}}^1$

素因数の和:457

約数の個数: 144

約数和(自身を含む): 226890720

約数和(自身を除く): 149475200

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 169, 182, 208, 224, 260, 280, 338, 364, 409, 416, 455, 520, 560, 676, 728, 818, 845, 910, 1040, 1120, 1183, 1352, 1456, 1636, 1690, 1820, 2045, 2080, 2366, 2704, 2863, 2912, 3272, 3380, 3640, 4090, 4732, 5317, 5408, 5726, 5915, 6544, 6760, 7280, 8180, 9464, 10634, 11452, 11830, 13088, 13520, 14315, 14560, 16360, 18928, 21268, 22904, 23660, 26585, 27040, 28630, 32720, 37219, 37856, 42536, 45808, 47320, 53170, 57260, 65440, 69121, 74438, 85072, 91616, 94640, 106340, 114520, 138242, 148876, 170144, 186095, 189280, 212680, 229040, 276484, 297752, 345605, 372190, 425360, 458080, 483847, 552968, 595504, 691210, 744380, 850720, 967694, 1105936, 1191008, 1382420, 1488760, 1935388, 2211872, 2419235, 2764840, 2977520, 3870776, 4838470, 5529680, 5955040, 7741552, 9676940, 11059360, 15483104, 19353880, 38707760, 77415520]

約数ペア:

[(1, 77415520), (2, 38707760), (4, 19353880), (5, 15483104), (7, 11059360), (8, 9676940), (10, 7741552), (13, 5955040), (14, 5529680), (16, 4838470), (20, 3870776), (26, 2977520), (28, 2764840), (32, 2419235), (35, 2211872), (40, 1935388), (52, 1488760), (56, 1382420), (65, 1191008), (70, 1105936), (80, 967694), (91, 850720), (104, 744380), (112, 691210), (130, 595504), (140, 552968), (160, 483847), (169, 458080), (182, 425360), (208, 372190), (224, 345605), (260, 297752), (280, 276484), (338, 229040), (364, 212680), (409, 189280), (416, 186095), (455, 170144), (520, 148876), (560, 138242), (676, 114520), (728, 106340), (818, 94640), (845, 91616), (910, 85072), (1040, 74438), (1120, 69121), (1183, 65440), (1352, 57260), (1456, 53170), (1636, 47320), (1690, 45808), (1820, 42536), (2045, 37856), (2080, 37219), (2366, 32720), (2704, 28630), (2863, 27040), (2912, 26585), (3272, 23660), (3380, 22904), (3640, 21268), (4090, 18928), (4732, 16360), (5317, 14560), (5408, 14315), (5726, 13520), (5915, 13088), (6544, 11830), (6760, 11452), (7280, 10634), (8180, 9464)]