821314728

素因数分解:

$2^3\times 3^7\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:220

約数の個数: 256

約数和(自身を含む): 2611929600

約数和(自身を除く): 1790614872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 23, 24, 26, 27, 36, 39, 46, 52, 54, 69, 72, 78, 81, 92, 104, 108, 117, 138, 156, 157, 162, 184, 207, 216, 234, 243, 276, 299, 312, 314, 324, 351, 414, 468, 471, 486, 552, 598, 621, 628, 648, 702, 729, 828, 897, 936, 942, 972, 1053, 1196, 1242, 1256, 1404, 1413, 1458, 1656, 1794, 1863, 1884, 1944, 2041, 2106, 2187, 2392, 2484, 2691, 2808, 2826, 2916, 3159, 3588, 3611, 3726, 3768, 4082, 4212, 4239, 4374, 4968, 5382, 5589, 5652, 5832, 6123, 6318, 7176, 7222, 7452, 8073, 8164, 8424, 8478, 8748, 9477, 10764, 10833, 11178, 11304, 12246, 12636, 12717, 14444, 14904, 16146, 16328, 16767, 16956, 17496, 18369, 18954, 21528, 21666, 22356, 24219, 24492, 25272, 25434, 28431, 28888, 32292, 32499, 33534, 33912, 36738, 37908, 38151, 43332, 44712, 46943, 48438, 48984, 50301, 50868, 55107, 56862, 64584, 64998, 67068, 72657, 73476, 75816, 76302, 86664, 93886, 96876, 97497, 100602, 101736, 110214, 113724, 114453, 129996, 134136, 140829, 145314, 146952, 152604, 165321, 187772, 193752, 194994, 201204, 217971, 220428, 227448, 228906, 259992, 281658, 290628, 292491, 305208, 330642, 343359, 375544, 389988, 402408, 422487, 435942, 440856, 457812, 495963, 563316, 581256, 584982, 653913, 661284, 686718, 779976, 844974, 871884, 877473, 915624, 991926, 1126632, 1169964, 1267461, 1307826, 1322568, 1373436, 1487889, 1689948, 1743768, 1754946, 1983852, 2339928, 2534922, 2615652, 2632419, 2746872, 2975778, 3379896, 3509892, 3802383, 3967704, 4463667, 5069844, 5231304, 5264838, 5951556, 7019784, 7604766, 7897257, 8927334, 10139688, 10529676, 11407149, 11903112, 15209532, 15794514, 17854668, 21059352, 22814298, 30419064, 31589028, 34221447, 35709336, 45628596, 63178056, 68442894, 91257192, 102664341, 136885788, 205328682, 273771576, 410657364, 821314728]

約数ペア:

[(1, 821314728), (2, 410657364), (3, 273771576), (4, 205328682), (6, 136885788), (8, 102664341), (9, 91257192), (12, 68442894), (13, 63178056), (18, 45628596), (23, 35709336), (24, 34221447), (26, 31589028), (27, 30419064), (36, 22814298), (39, 21059352), (46, 17854668), (52, 15794514), (54, 15209532), (69, 11903112), (72, 11407149), (78, 10529676), (81, 10139688), (92, 8927334), (104, 7897257), (108, 7604766), (117, 7019784), (138, 5951556), (156, 5264838), (157, 5231304), (162, 5069844), (184, 4463667), (207, 3967704), (216, 3802383), (234, 3509892), (243, 3379896), (276, 2975778), (299, 2746872), (312, 2632419), (314, 2615652), (324, 2534922), (351, 2339928), (414, 1983852), (468, 1754946), (471, 1743768), (486, 1689948), (552, 1487889), (598, 1373436), (621, 1322568), (628, 1307826), (648, 1267461), (702, 1169964), (729, 1126632), (828, 991926), (897, 915624), (936, 877473), (942, 871884), (972, 844974), (1053, 779976), (1196, 686718), (1242, 661284), (1256, 653913), (1404, 584982), (1413, 581256), (1458, 563316), (1656, 495963), (1794, 457812), (1863, 440856), (1884, 435942), (1944, 422487), (2041, 402408), (2106, 389988), (2187, 375544), (2392, 343359), (2484, 330642), (2691, 305208), (2808, 292491), (2826, 290628), (2916, 281658), (3159, 259992), (3588, 228906), (3611, 227448), (3726, 220428), (3768, 217971), (4082, 201204), (4212, 194994), (4239, 193752), (4374, 187772), (4968, 165321), (5382, 152604), (5589, 146952), (5652, 145314), (5832, 140829), (6123, 134136), (6318, 129996), (7176, 114453), (7222, 113724), (7452, 110214), (8073, 101736), (8164, 100602), (8424, 97497), (8478, 96876), (8748, 93886), (9477, 86664), (10764, 76302), (10833, 75816), (11178, 73476), (11304, 72657), (12246, 67068), (12636, 64998), (12717, 64584), (14444, 56862), (14904, 55107), (16146, 50868), (16328, 50301), (16767, 48984), (16956, 48438), (17496, 46943), (18369, 44712), (18954, 43332), (21528, 38151), (21666, 37908), (22356, 36738), (24219, 33912), (24492, 33534), (25272, 32499), (25434, 32292), (28431, 28888)]