17987984

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:220

約数の個数: 80

約数和(自身を含む): 42854400

約数和(自身を除く): 24866416

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 79, 107, 112, 133, 152, 158, 214, 266, 304, 316, 428, 532, 553, 632, 749, 856, 1064, 1106, 1264, 1498, 1501, 1712, 2033, 2128, 2212, 2996, 3002, 4066, 4424, 5992, 6004, 8132, 8453, 8848, 10507, 11984, 12008, 14231, 16264, 16906, 21014, 24016, 28462, 32528, 33812, 42028, 56924, 59171, 67624, 84056, 113848, 118342, 135248, 160607, 168112, 227696, 236684, 321214, 473368, 642428, 946736, 1124249, 1284856, 2248498, 2569712, 4496996, 8993992, 17987984]

約数ペア:

[(1, 17987984), (2, 8993992), (4, 4496996), (7, 2569712), (8, 2248498), (14, 1284856), (16, 1124249), (19, 946736), (28, 642428), (38, 473368), (56, 321214), (76, 236684), (79, 227696), (107, 168112), (112, 160607), (133, 135248), (152, 118342), (158, 113848), (214, 84056), (266, 67624), (304, 59171), (316, 56924), (428, 42028), (532, 33812), (553, 32528), (632, 28462), (749, 24016), (856, 21014), (1064, 16906), (1106, 16264), (1264, 14231), (1498, 12008), (1501, 11984), (1712, 10507), (2033, 8848), (2128, 8453), (2212, 8132), (2996, 6004), (3002, 5992), (4066, 4424)]