18728528

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{677}}^1$

素因数の和:724

約数の個数: 80

約数和(自身を含む): 47080320

約数和(自身を除く): 28351792

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 38, 52, 56, 76, 91, 104, 112, 133, 152, 182, 208, 247, 266, 304, 364, 494, 532, 677, 728, 988, 1064, 1354, 1456, 1729, 1976, 2128, 2708, 3458, 3952, 4739, 5416, 6916, 8801, 9478, 10832, 12863, 13832, 17602, 18956, 25726, 27664, 35204, 37912, 51452, 61607, 70408, 75824, 90041, 102904, 123214, 140816, 167219, 180082, 205808, 246428, 334438, 360164, 492856, 668876, 720328, 985712, 1170533, 1337752, 1440656, 2341066, 2675504, 4682132, 9364264, 18728528]

約数ペア:

[(1, 18728528), (2, 9364264), (4, 4682132), (7, 2675504), (8, 2341066), (13, 1440656), (14, 1337752), (16, 1170533), (19, 985712), (26, 720328), (28, 668876), (38, 492856), (52, 360164), (56, 334438), (76, 246428), (91, 205808), (104, 180082), (112, 167219), (133, 140816), (152, 123214), (182, 102904), (208, 90041), (247, 75824), (266, 70408), (304, 61607), (364, 51452), (494, 37912), (532, 35204), (677, 27664), (728, 25726), (988, 18956), (1064, 17602), (1354, 13832), (1456, 12863), (1729, 10832), (1976, 9478), (2128, 8801), (2708, 6916), (3458, 5416), (3952, 4739)]