256534128

素因数分解:

$2^4\times 3^5\times {\mathrm{65981}}^1$

素因数の和:66004

約数の個数: 60

約数和(自身を含む): 744540888

約数和(自身を除く): 488006760

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 144, 162, 216, 243, 324, 432, 486, 648, 972, 1296, 1944, 3888, 65981, 131962, 197943, 263924, 395886, 527848, 593829, 791772, 1055696, 1187658, 1583544, 1781487, 2375316, 3167088, 3562974, 4750632, 5344461, 7125948, 9501264, 10688922, 14251896, 16033383, 21377844, 28503792, 32066766, 42755688, 64133532, 85511376, 128267064, 256534128]

約数ペア:

[(1, 256534128), (2, 128267064), (3, 85511376), (4, 64133532), (6, 42755688), (8, 32066766), (9, 28503792), (12, 21377844), (16, 16033383), (18, 14251896), (24, 10688922), (27, 9501264), (36, 7125948), (48, 5344461), (54, 4750632), (72, 3562974), (81, 3167088), (108, 2375316), (144, 1781487), (162, 1583544), (216, 1187658), (243, 1055696), (324, 791772), (432, 593829), (486, 527848), (648, 395886), (972, 263924), (1296, 197943), (1944, 131962), (3888, 65981)]