28491736

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5591}}^1$

素因数の和:5624

約数の個数: 48

約数和(自身を含む): 66936240

約数和(自身を除く): 38444504

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 5096, 5591, 11182, 22364, 39137, 44728, 72683, 78274, 145366, 156548, 273959, 290732, 313096, 508781, 547918, 581464, 1017562, 1095836, 2035124, 2191672, 3561467, 4070248, 7122934, 14245868, 28491736]

約数ペア:

[(1, 28491736), (2, 14245868), (4, 7122934), (7, 4070248), (8, 3561467), (13, 2191672), (14, 2035124), (26, 1095836), (28, 1017562), (49, 581464), (52, 547918), (56, 508781), (91, 313096), (98, 290732), (104, 273959), (182, 156548), (196, 145366), (364, 78274), (392, 72683), (637, 44728), (728, 39137), (1274, 22364), (2548, 11182), (5096, 5591)]