642864672

素因数分解:

$2^5\times 3^2\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:447

約数の個数: 144

約数和(自身を含む): 1875182400

約数和(自身を除く): 1232317728

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 71, 72, 96, 142, 144, 149, 211, 213, 284, 288, 298, 422, 426, 447, 568, 596, 633, 639, 844, 852, 894, 1136, 1192, 1266, 1278, 1341, 1688, 1704, 1788, 1899, 2272, 2384, 2532, 2556, 2682, 3376, 3408, 3576, 3798, 4768, 5064, 5112, 5364, 6752, 6816, 7152, 7596, 10128, 10224, 10579, 10728, 14304, 14981, 15192, 20256, 20448, 21158, 21456, 29962, 30384, 31439, 31737, 42316, 42912, 44943, 59924, 60768, 62878, 63474, 84632, 89886, 94317, 95211, 119848, 125756, 126948, 134829, 169264, 179772, 188634, 190422, 239696, 251512, 253896, 269658, 282951, 338528, 359544, 377268, 380844, 479392, 503024, 507792, 539316, 565902, 719088, 754536, 761688, 1006048, 1015584, 1078632, 1131804, 1438176, 1509072, 1523376, 2157264, 2232169, 2263608, 3018144, 3046752, 4314528, 4464338, 4527216, 6696507, 8928676, 9054432, 13393014, 17857352, 20089521, 26786028, 35714704, 40179042, 53572056, 71429408, 80358084, 107144112, 160716168, 214288224, 321432336, 642864672]

約数ペア:

[(1, 642864672), (2, 321432336), (3, 214288224), (4, 160716168), (6, 107144112), (8, 80358084), (9, 71429408), (12, 53572056), (16, 40179042), (18, 35714704), (24, 26786028), (32, 20089521), (36, 17857352), (48, 13393014), (71, 9054432), (72, 8928676), (96, 6696507), (142, 4527216), (144, 4464338), (149, 4314528), (211, 3046752), (213, 3018144), (284, 2263608), (288, 2232169), (298, 2157264), (422, 1523376), (426, 1509072), (447, 1438176), (568, 1131804), (596, 1078632), (633, 1015584), (639, 1006048), (844, 761688), (852, 754536), (894, 719088), (1136, 565902), (1192, 539316), (1266, 507792), (1278, 503024), (1341, 479392), (1688, 380844), (1704, 377268), (1788, 359544), (1899, 338528), (2272, 282951), (2384, 269658), (2532, 253896), (2556, 251512), (2682, 239696), (3376, 190422), (3408, 188634), (3576, 179772), (3798, 169264), (4768, 134829), (5064, 126948), (5112, 125756), (5364, 119848), (6752, 95211), (6816, 94317), (7152, 89886), (7596, 84632), (10128, 63474), (10224, 62878), (10579, 60768), (10728, 59924), (14304, 44943), (14981, 42912), (15192, 42316), (20256, 31737), (20448, 31439), (21158, 30384), (21456, 29962)]