31005112

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{149}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 63315000

約数和(自身を除く): 32309888

約数列:

[1, 2, 4, 8, 19, 37, 38, 74, 76, 148, 149, 152, 296, 298, 596, 703, 1192, 1369, 1406, 2738, 2812, 2831, 5476, 5513, 5624, 5662, 10952, 11026, 11324, 22052, 22648, 26011, 44104, 52022, 104044, 104747, 203981, 208088, 209494, 407962, 418988, 815924, 837976, 1631848, 3875639, 7751278, 15502556, 31005112]

約数ペア:

[(1, 31005112), (2, 15502556), (4, 7751278), (8, 3875639), (19, 1631848), (37, 837976), (38, 815924), (74, 418988), (76, 407962), (148, 209494), (149, 208088), (152, 203981), (296, 104747), (298, 104044), (596, 52022), (703, 44104), (1192, 26011), (1369, 22648), (1406, 22052), (2738, 11324), (2812, 11026), (2831, 10952), (5476, 5662), (5513, 5624)]