31118960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{347}}^1$

素因数の和:438

約数の個数: 80

約数和(自身を含む): 77673600

約数和(自身を除く): 46554640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 59, 76, 80, 95, 118, 152, 190, 236, 295, 304, 347, 380, 472, 590, 694, 760, 944, 1121, 1180, 1388, 1520, 1735, 2242, 2360, 2776, 3470, 4484, 4720, 5552, 5605, 6593, 6940, 8968, 11210, 13186, 13880, 17936, 20473, 22420, 26372, 27760, 32965, 40946, 44840, 52744, 65930, 81892, 89680, 102365, 105488, 131860, 163784, 204730, 263720, 327568, 388987, 409460, 527440, 777974, 818920, 1555948, 1637840, 1944935, 3111896, 3889870, 6223792, 7779740, 15559480, 31118960]

約数ペア:

[(1, 31118960), (2, 15559480), (4, 7779740), (5, 6223792), (8, 3889870), (10, 3111896), (16, 1944935), (19, 1637840), (20, 1555948), (38, 818920), (40, 777974), (59, 527440), (76, 409460), (80, 388987), (95, 327568), (118, 263720), (152, 204730), (190, 163784), (236, 131860), (295, 105488), (304, 102365), (347, 89680), (380, 81892), (472, 65930), (590, 52744), (694, 44840), (760, 40946), (944, 32965), (1121, 27760), (1180, 26372), (1388, 22420), (1520, 20473), (1735, 17936), (2242, 13880), (2360, 13186), (2776, 11210), (3470, 8968), (4484, 6940), (4720, 6593), (5552, 5605)]