640054080

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{769}}^1$

素因数の和:826

約数の個数: 252

約数和(自身を含む): 2341679340

約数和(自身を除く): 1701625260

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 32, 34, 36, 40, 45, 48, 51, 60, 64, 68, 72, 80, 85, 90, 96, 102, 120, 136, 144, 153, 160, 170, 180, 192, 204, 240, 255, 272, 288, 289, 306, 320, 340, 360, 408, 480, 510, 544, 576, 578, 612, 680, 720, 765, 769, 816, 867, 960, 1020, 1088, 1156, 1224, 1360, 1440, 1445, 1530, 1538, 1632, 1734, 2040, 2307, 2312, 2448, 2601, 2720, 2880, 2890, 3060, 3076, 3264, 3468, 3845, 4080, 4335, 4614, 4624, 4896, 5202, 5440, 5780, 6120, 6152, 6921, 6936, 7690, 8160, 8670, 9228, 9248, 9792, 10404, 11535, 11560, 12240, 12304, 13005, 13073, 13842, 13872, 15380, 16320, 17340, 18456, 18496, 20808, 23070, 23120, 24480, 24608, 26010, 26146, 27684, 27744, 30760, 34605, 34680, 36912, 39219, 41616, 46140, 46240, 48960, 49216, 52020, 52292, 55368, 55488, 61520, 65365, 69210, 69360, 73824, 78438, 83232, 92280, 92480, 104040, 104584, 110736, 117657, 123040, 130730, 138420, 138720, 147648, 156876, 166464, 184560, 196095, 208080, 209168, 221472, 222241, 235314, 246080, 261460, 276840, 277440, 313752, 369120, 392190, 416160, 418336, 442944, 444482, 470628, 522920, 553680, 588285, 627504, 666723, 738240, 784380, 832320, 836672, 888964, 941256, 1045840, 1107360, 1111205, 1176570, 1255008, 1333446, 1568760, 1777928, 1882512, 2000169, 2091680, 2214720, 2222410, 2353140, 2510016, 2666892, 3137520, 3333615, 3555856, 3765024, 4000338, 4183360, 4444820, 4706280, 5333784, 6275040, 6667230, 7111712, 7530048, 8000676, 8889640, 9412560, 10000845, 10667568, 12550080, 13334460, 14223424, 16001352, 17779280, 18825120, 20001690, 21335136, 26668920, 32002704, 35558560, 37650240, 40003380, 42670272, 53337840, 64005408, 71117120, 80006760, 106675680, 128010816, 160013520, 213351360, 320027040, 640054080]

約数ペア:

[(1, 640054080), (2, 320027040), (3, 213351360), (4, 160013520), (5, 128010816), (6, 106675680), (8, 80006760), (9, 71117120), (10, 64005408), (12, 53337840), (15, 42670272), (16, 40003380), (17, 37650240), (18, 35558560), (20, 32002704), (24, 26668920), (30, 21335136), (32, 20001690), (34, 18825120), (36, 17779280), (40, 16001352), (45, 14223424), (48, 13334460), (51, 12550080), (60, 10667568), (64, 10000845), (68, 9412560), (72, 8889640), (80, 8000676), (85, 7530048), (90, 7111712), (96, 6667230), (102, 6275040), (120, 5333784), (136, 4706280), (144, 4444820), (153, 4183360), (160, 4000338), (170, 3765024), (180, 3555856), (192, 3333615), (204, 3137520), (240, 2666892), (255, 2510016), (272, 2353140), (288, 2222410), (289, 2214720), (306, 2091680), (320, 2000169), (340, 1882512), (360, 1777928), (408, 1568760), (480, 1333446), (510, 1255008), (544, 1176570), (576, 1111205), (578, 1107360), (612, 1045840), (680, 941256), (720, 888964), (765, 836672), (769, 832320), (816, 784380), (867, 738240), (960, 666723), (1020, 627504), (1088, 588285), (1156, 553680), (1224, 522920), (1360, 470628), (1440, 444482), (1445, 442944), (1530, 418336), (1538, 416160), (1632, 392190), (1734, 369120), (2040, 313752), (2307, 277440), (2312, 276840), (2448, 261460), (2601, 246080), (2720, 235314), (2880, 222241), (2890, 221472), (3060, 209168), (3076, 208080), (3264, 196095), (3468, 184560), (3845, 166464), (4080, 156876), (4335, 147648), (4614, 138720), (4624, 138420), (4896, 130730), (5202, 123040), (5440, 117657), (5780, 110736), (6120, 104584), (6152, 104040), (6921, 92480), (6936, 92280), (7690, 83232), (8160, 78438), (8670, 73824), (9228, 69360), (9248, 69210), (9792, 65365), (10404, 61520), (11535, 55488), (11560, 55368), (12240, 52292), (12304, 52020), (13005, 49216), (13073, 48960), (13842, 46240), (13872, 46140), (15380, 41616), (16320, 39219), (17340, 36912), (18456, 34680), (18496, 34605), (20808, 30760), (23070, 27744), (23120, 27684), (24480, 26146), (24608, 26010)]