28031328

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{7487}}^1$

素因数の和:7516

約数の個数: 72

約数和(自身を含む): 85857408

約数和(自身を除く): 57826080

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 7487, 14974, 22461, 29948, 44922, 59896, 67383, 89844, 97331, 119792, 134766, 179688, 194662, 239584, 269532, 291993, 359376, 389324, 539064, 583986, 718752, 778648, 875979, 1078128, 1167972, 1557296, 1751958, 2156256, 2335944, 3114592, 3503916, 4671888, 7007832, 9343776, 14015664, 28031328]

約数ペア:

[(1, 28031328), (2, 14015664), (3, 9343776), (4, 7007832), (6, 4671888), (8, 3503916), (9, 3114592), (12, 2335944), (13, 2156256), (16, 1751958), (18, 1557296), (24, 1167972), (26, 1078128), (32, 875979), (36, 778648), (39, 718752), (48, 583986), (52, 539064), (72, 389324), (78, 359376), (96, 291993), (104, 269532), (117, 239584), (144, 194662), (156, 179688), (208, 134766), (234, 119792), (288, 97331), (312, 89844), (416, 67383), (468, 59896), (624, 44922), (936, 29948), (1248, 22461), (1872, 14974), (3744, 7487)]