638455896

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:726

約数の個数: 192

約数和(自身を含む): 1987614720

約数和(自身を除く): 1349158824

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 23, 24, 26, 36, 39, 46, 47, 52, 69, 72, 78, 92, 94, 104, 117, 138, 141, 156, 184, 188, 207, 234, 276, 282, 299, 312, 376, 414, 423, 468, 552, 564, 598, 611, 631, 828, 846, 897, 936, 1081, 1128, 1196, 1222, 1262, 1656, 1692, 1794, 1833, 1893, 2162, 2392, 2444, 2524, 2691, 3243, 3384, 3588, 3666, 3786, 4324, 4888, 5048, 5382, 5499, 5679, 6486, 7176, 7332, 7572, 8203, 8648, 9729, 10764, 10998, 11358, 12972, 14053, 14513, 14664, 15144, 16406, 19458, 21528, 21996, 22716, 24609, 25944, 28106, 29026, 29657, 32812, 38916, 42159, 43539, 43992, 45432, 49218, 56212, 58052, 59314, 65624, 73827, 77832, 84318, 87078, 88971, 98436, 112424, 116104, 118628, 126477, 130617, 147654, 168636, 174156, 177942, 188669, 196872, 237256, 252954, 261234, 266913, 295308, 337272, 348312, 355884, 377338, 385541, 505908, 522468, 533826, 566007, 590616, 682111, 711768, 754676, 771082, 1011816, 1044936, 1067652, 1132014, 1156623, 1364222, 1509352, 1542164, 1698021, 2046333, 2135304, 2264028, 2313246, 2728444, 3084328, 3396042, 3469869, 4092666, 4528056, 4626492, 5456888, 6138999, 6792084, 6939738, 8185332, 8867443, 9252984, 12277998, 13584168, 13879476, 16370664, 17734886, 24555996, 26602329, 27758952, 35469772, 49111992, 53204658, 70939544, 79806987, 106409316, 159613974, 212818632, 319227948, 638455896]

約数ペア:

[(1, 638455896), (2, 319227948), (3, 212818632), (4, 159613974), (6, 106409316), (8, 79806987), (9, 70939544), (12, 53204658), (13, 49111992), (18, 35469772), (23, 27758952), (24, 26602329), (26, 24555996), (36, 17734886), (39, 16370664), (46, 13879476), (47, 13584168), (52, 12277998), (69, 9252984), (72, 8867443), (78, 8185332), (92, 6939738), (94, 6792084), (104, 6138999), (117, 5456888), (138, 4626492), (141, 4528056), (156, 4092666), (184, 3469869), (188, 3396042), (207, 3084328), (234, 2728444), (276, 2313246), (282, 2264028), (299, 2135304), (312, 2046333), (376, 1698021), (414, 1542164), (423, 1509352), (468, 1364222), (552, 1156623), (564, 1132014), (598, 1067652), (611, 1044936), (631, 1011816), (828, 771082), (846, 754676), (897, 711768), (936, 682111), (1081, 590616), (1128, 566007), (1196, 533826), (1222, 522468), (1262, 505908), (1656, 385541), (1692, 377338), (1794, 355884), (1833, 348312), (1893, 337272), (2162, 295308), (2392, 266913), (2444, 261234), (2524, 252954), (2691, 237256), (3243, 196872), (3384, 188669), (3588, 177942), (3666, 174156), (3786, 168636), (4324, 147654), (4888, 130617), (5048, 126477), (5382, 118628), (5499, 116104), (5679, 112424), (6486, 98436), (7176, 88971), (7332, 87078), (7572, 84318), (8203, 77832), (8648, 73827), (9729, 65624), (10764, 59314), (10998, 58052), (11358, 56212), (12972, 49218), (14053, 45432), (14513, 43992), (14664, 43539), (15144, 42159), (16406, 38916), (19458, 32812), (21528, 29657), (21996, 29026), (22716, 28106), (24609, 25944)]