80270820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{479}}^1$

素因数の和:527

約数の個数: 216

約数和(自身を含む): 298771200

約数和(自身を除く): 218500380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 49, 57, 60, 63, 70, 76, 84, 90, 95, 98, 105, 114, 126, 133, 140, 147, 171, 180, 190, 196, 210, 228, 245, 252, 266, 285, 294, 315, 342, 380, 399, 420, 441, 479, 490, 532, 570, 588, 630, 665, 684, 735, 798, 855, 882, 931, 958, 980, 1140, 1197, 1260, 1330, 1437, 1470, 1596, 1710, 1764, 1862, 1916, 1995, 2205, 2394, 2395, 2660, 2793, 2874, 2940, 3353, 3420, 3724, 3990, 4311, 4410, 4655, 4788, 4790, 5586, 5748, 5985, 6706, 7185, 7980, 8379, 8622, 8820, 9101, 9310, 9580, 10059, 11172, 11970, 13412, 13965, 14370, 16758, 16765, 17244, 18202, 18620, 20118, 21555, 23471, 23940, 27303, 27930, 28740, 30177, 33516, 33530, 36404, 40236, 41895, 43110, 45505, 46942, 50295, 54606, 55860, 60354, 63707, 67060, 70413, 81909, 83790, 86220, 91010, 93884, 100590, 109212, 117355, 120708, 127414, 136515, 140826, 150885, 163818, 167580, 182020, 191121, 201180, 211239, 234710, 254828, 273030, 281652, 301770, 318535, 327636, 352065, 382242, 409545, 422478, 445949, 469420, 546060, 573363, 603540, 637070, 704130, 764484, 819090, 844956, 891898, 955605, 1056195, 1146726, 1274140, 1337847, 1408260, 1638180, 1783796, 1911210, 2112390, 2229745, 2293452, 2675694, 2866815, 3822420, 4013541, 4224780, 4459490, 5351388, 5733630, 6689235, 8027082, 8918980, 11467260, 13378470, 16054164, 20067705, 26756940, 40135410, 80270820]

約数ペア:

[(1, 80270820), (2, 40135410), (3, 26756940), (4, 20067705), (5, 16054164), (6, 13378470), (7, 11467260), (9, 8918980), (10, 8027082), (12, 6689235), (14, 5733630), (15, 5351388), (18, 4459490), (19, 4224780), (20, 4013541), (21, 3822420), (28, 2866815), (30, 2675694), (35, 2293452), (36, 2229745), (38, 2112390), (42, 1911210), (45, 1783796), (49, 1638180), (57, 1408260), (60, 1337847), (63, 1274140), (70, 1146726), (76, 1056195), (84, 955605), (90, 891898), (95, 844956), (98, 819090), (105, 764484), (114, 704130), (126, 637070), (133, 603540), (140, 573363), (147, 546060), (171, 469420), (180, 445949), (190, 422478), (196, 409545), (210, 382242), (228, 352065), (245, 327636), (252, 318535), (266, 301770), (285, 281652), (294, 273030), (315, 254828), (342, 234710), (380, 211239), (399, 201180), (420, 191121), (441, 182020), (479, 167580), (490, 163818), (532, 150885), (570, 140826), (588, 136515), (630, 127414), (665, 120708), (684, 117355), (735, 109212), (798, 100590), (855, 93884), (882, 91010), (931, 86220), (958, 83790), (980, 81909), (1140, 70413), (1197, 67060), (1260, 63707), (1330, 60354), (1437, 55860), (1470, 54606), (1596, 50295), (1710, 46942), (1764, 45505), (1862, 43110), (1916, 41895), (1995, 40236), (2205, 36404), (2394, 33530), (2395, 33516), (2660, 30177), (2793, 28740), (2874, 27930), (2940, 27303), (3353, 23940), (3420, 23471), (3724, 21555), (3990, 20118), (4311, 18620), (4410, 18202), (4655, 17244), (4788, 16765), (4790, 16758), (5586, 14370), (5748, 13965), (5985, 13412), (6706, 11970), (7185, 11172), (7980, 10059), (8379, 9580), (8622, 9310), (8820, 9101)]