81575520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{769}}^1$

素因数の和:817

約数の個数: 192

約数和(自身を含む): 293388480

約数和(自身を除く): 211812960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 17, 20, 24, 26, 30, 32, 34, 39, 40, 48, 51, 52, 60, 65, 68, 78, 80, 85, 96, 102, 104, 120, 130, 136, 156, 160, 170, 195, 204, 208, 221, 240, 255, 260, 272, 312, 340, 390, 408, 416, 442, 480, 510, 520, 544, 624, 663, 680, 769, 780, 816, 884, 1020, 1040, 1105, 1248, 1326, 1360, 1538, 1560, 1632, 1768, 2040, 2080, 2210, 2307, 2652, 2720, 3076, 3120, 3315, 3536, 3845, 4080, 4420, 4614, 5304, 6152, 6240, 6630, 7072, 7690, 8160, 8840, 9228, 9997, 10608, 11535, 12304, 13073, 13260, 15380, 17680, 18456, 19994, 21216, 23070, 24608, 26146, 26520, 29991, 30760, 35360, 36912, 39219, 39988, 46140, 49985, 52292, 53040, 59982, 61520, 65365, 73824, 78438, 79976, 92280, 99970, 104584, 106080, 119964, 123040, 130730, 149955, 156876, 159952, 169949, 184560, 196095, 199940, 209168, 239928, 261460, 299910, 313752, 319904, 339898, 369120, 392190, 399880, 418336, 479856, 509847, 522920, 599820, 627504, 679796, 784380, 799760, 849745, 959712, 1019694, 1045840, 1199640, 1255008, 1359592, 1568760, 1599520, 1699490, 2039388, 2091680, 2399280, 2549235, 2719184, 3137520, 3398980, 4078776, 4798560, 5098470, 5438368, 6275040, 6797960, 8157552, 10196940, 13595920, 16315104, 20393880, 27191840, 40787760, 81575520]

約数ペア:

[(1, 81575520), (2, 40787760), (3, 27191840), (4, 20393880), (5, 16315104), (6, 13595920), (8, 10196940), (10, 8157552), (12, 6797960), (13, 6275040), (15, 5438368), (16, 5098470), (17, 4798560), (20, 4078776), (24, 3398980), (26, 3137520), (30, 2719184), (32, 2549235), (34, 2399280), (39, 2091680), (40, 2039388), (48, 1699490), (51, 1599520), (52, 1568760), (60, 1359592), (65, 1255008), (68, 1199640), (78, 1045840), (80, 1019694), (85, 959712), (96, 849745), (102, 799760), (104, 784380), (120, 679796), (130, 627504), (136, 599820), (156, 522920), (160, 509847), (170, 479856), (195, 418336), (204, 399880), (208, 392190), (221, 369120), (240, 339898), (255, 319904), (260, 313752), (272, 299910), (312, 261460), (340, 239928), (390, 209168), (408, 199940), (416, 196095), (442, 184560), (480, 169949), (510, 159952), (520, 156876), (544, 149955), (624, 130730), (663, 123040), (680, 119964), (769, 106080), (780, 104584), (816, 99970), (884, 92280), (1020, 79976), (1040, 78438), (1105, 73824), (1248, 65365), (1326, 61520), (1360, 59982), (1538, 53040), (1560, 52292), (1632, 49985), (1768, 46140), (2040, 39988), (2080, 39219), (2210, 36912), (2307, 35360), (2652, 30760), (2720, 29991), (3076, 26520), (3120, 26146), (3315, 24608), (3536, 23070), (3845, 21216), (4080, 19994), (4420, 18456), (4614, 17680), (5304, 15380), (6152, 13260), (6240, 13073), (6630, 12304), (7072, 11535), (7690, 10608), (8160, 9997), (8840, 9228)]