31919328

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:317

約数の個数: 144

約数和(自身を含む): 105670656

約数和(自身を除く): 73751328

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 71, 72, 84, 96, 112, 126, 142, 144, 168, 213, 223, 224, 252, 284, 288, 336, 426, 446, 497, 504, 568, 639, 669, 672, 852, 892, 994, 1008, 1136, 1278, 1338, 1491, 1561, 1704, 1784, 1988, 2007, 2016, 2272, 2556, 2676, 2982, 3122, 3408, 3568, 3976, 4014, 4473, 4683, 5112, 5352, 5964, 6244, 6816, 7136, 7952, 8028, 8946, 9366, 10224, 10704, 11928, 12488, 14049, 15833, 15904, 16056, 17892, 18732, 20448, 21408, 23856, 24976, 28098, 31666, 32112, 35784, 37464, 47499, 47712, 49952, 56196, 63332, 64224, 71568, 74928, 94998, 110831, 112392, 126664, 142497, 143136, 149856, 189996, 221662, 224784, 253328, 284994, 332493, 379992, 443324, 449568, 506656, 569988, 664986, 759984, 886648, 997479, 1139976, 1329972, 1519968, 1773296, 1994958, 2279952, 2659944, 3546592, 3989916, 4559904, 5319888, 7979832, 10639776, 15959664, 31919328]

約数ペア:

[(1, 31919328), (2, 15959664), (3, 10639776), (4, 7979832), (6, 5319888), (7, 4559904), (8, 3989916), (9, 3546592), (12, 2659944), (14, 2279952), (16, 1994958), (18, 1773296), (21, 1519968), (24, 1329972), (28, 1139976), (32, 997479), (36, 886648), (42, 759984), (48, 664986), (56, 569988), (63, 506656), (71, 449568), (72, 443324), (84, 379992), (96, 332493), (112, 284994), (126, 253328), (142, 224784), (144, 221662), (168, 189996), (213, 149856), (223, 143136), (224, 142497), (252, 126664), (284, 112392), (288, 110831), (336, 94998), (426, 74928), (446, 71568), (497, 64224), (504, 63332), (568, 56196), (639, 49952), (669, 47712), (672, 47499), (852, 37464), (892, 35784), (994, 32112), (1008, 31666), (1136, 28098), (1278, 24976), (1338, 23856), (1491, 21408), (1561, 20448), (1704, 18732), (1784, 17892), (1988, 16056), (2007, 15904), (2016, 15833), (2272, 14049), (2556, 12488), (2676, 11928), (2982, 10704), (3122, 10224), (3408, 9366), (3568, 8946), (3976, 8028), (4014, 7952), (4473, 7136), (4683, 6816), (5112, 6244), (5352, 5964)]