123571980

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{641}}^1$

素因数の和:686

約数の個数: 240

約数和(自身を含む): 469820736

約数和(自身を除く): 346248756

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 27, 28, 30, 34, 35, 36, 42, 45, 51, 54, 60, 63, 68, 70, 81, 84, 85, 90, 102, 105, 108, 119, 126, 135, 140, 153, 162, 170, 180, 189, 204, 210, 238, 252, 255, 270, 306, 315, 324, 340, 357, 378, 405, 420, 459, 476, 510, 540, 567, 595, 612, 630, 641, 714, 756, 765, 810, 918, 945, 1020, 1071, 1134, 1190, 1260, 1282, 1377, 1428, 1530, 1620, 1785, 1836, 1890, 1923, 2142, 2268, 2295, 2380, 2564, 2754, 2835, 3060, 3205, 3213, 3570, 3780, 3846, 4284, 4487, 4590, 5355, 5508, 5670, 5769, 6410, 6426, 6885, 7140, 7692, 8974, 9180, 9615, 9639, 10710, 10897, 11340, 11538, 12820, 12852, 13461, 13770, 16065, 17307, 17948, 19230, 19278, 21420, 21794, 22435, 23076, 26922, 27540, 28845, 32130, 32691, 34614, 38460, 38556, 40383, 43588, 44870, 48195, 51921, 53844, 54485, 57690, 64260, 65382, 67305, 69228, 76279, 80766, 86535, 89740, 96390, 98073, 103842, 108970, 115380, 121149, 130764, 134610, 152558, 161532, 163455, 173070, 192780, 196146, 201915, 207684, 217940, 228837, 242298, 259605, 269220, 294219, 305116, 326910, 346140, 363447, 381395, 392292, 403830, 457674, 484596, 490365, 519210, 588438, 605745, 653820, 686511, 726894, 762790, 807660, 882657, 915348, 980730, 1038420, 1144185, 1176876, 1211490, 1373022, 1453788, 1471095, 1525580, 1765314, 1817235, 1961460, 2059533, 2288370, 2422980, 2746044, 2942190, 3432555, 3530628, 3634470, 4119066, 4413285, 4576740, 5884380, 6178599, 6865110, 7268940, 8238132, 8826570, 10297665, 12357198, 13730220, 17653140, 20595330, 24714396, 30892995, 41190660, 61785990, 123571980]

約数ペア:

[(1, 123571980), (2, 61785990), (3, 41190660), (4, 30892995), (5, 24714396), (6, 20595330), (7, 17653140), (9, 13730220), (10, 12357198), (12, 10297665), (14, 8826570), (15, 8238132), (17, 7268940), (18, 6865110), (20, 6178599), (21, 5884380), (27, 4576740), (28, 4413285), (30, 4119066), (34, 3634470), (35, 3530628), (36, 3432555), (42, 2942190), (45, 2746044), (51, 2422980), (54, 2288370), (60, 2059533), (63, 1961460), (68, 1817235), (70, 1765314), (81, 1525580), (84, 1471095), (85, 1453788), (90, 1373022), (102, 1211490), (105, 1176876), (108, 1144185), (119, 1038420), (126, 980730), (135, 915348), (140, 882657), (153, 807660), (162, 762790), (170, 726894), (180, 686511), (189, 653820), (204, 605745), (210, 588438), (238, 519210), (252, 490365), (255, 484596), (270, 457674), (306, 403830), (315, 392292), (324, 381395), (340, 363447), (357, 346140), (378, 326910), (405, 305116), (420, 294219), (459, 269220), (476, 259605), (510, 242298), (540, 228837), (567, 217940), (595, 207684), (612, 201915), (630, 196146), (641, 192780), (714, 173070), (756, 163455), (765, 161532), (810, 152558), (918, 134610), (945, 130764), (1020, 121149), (1071, 115380), (1134, 108970), (1190, 103842), (1260, 98073), (1282, 96390), (1377, 89740), (1428, 86535), (1530, 80766), (1620, 76279), (1785, 69228), (1836, 67305), (1890, 65382), (1923, 64260), (2142, 57690), (2268, 54485), (2295, 53844), (2380, 51921), (2564, 48195), (2754, 44870), (2835, 43588), (3060, 40383), (3205, 38556), (3213, 38460), (3570, 34614), (3780, 32691), (3846, 32130), (4284, 28845), (4487, 27540), (4590, 26922), (5355, 23076), (5508, 22435), (5670, 21794), (5769, 21420), (6410, 19278), (6426, 19230), (6885, 17948), (7140, 17307), (7692, 16065), (8974, 13770), (9180, 13461), (9615, 12852), (9639, 12820), (10710, 11538), (10897, 11340)]