157853255

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 232943040

約数和(自身を除く): 75089785

約数列:

[1, 5, 7, 23, 35, 49, 109, 115, 161, 245, 257, 545, 763, 805, 1127, 1285, 1799, 2507, 3815, 5341, 5635, 5911, 8995, 12535, 12593, 17549, 26705, 28013, 29555, 41377, 62965, 87745, 122843, 140065, 196091, 206885, 289639, 614215, 644299, 980455, 1372637, 1448195, 3221495, 4510093, 6863185, 22550465, 31570651, 157853255]

約数ペア:

[(1, 157853255), (5, 31570651), (7, 22550465), (23, 6863185), (35, 4510093), (49, 3221495), (109, 1448195), (115, 1372637), (161, 980455), (245, 644299), (257, 614215), (545, 289639), (763, 206885), (805, 196091), (1127, 140065), (1285, 122843), (1799, 87745), (2507, 62965), (3815, 41377), (5341, 29555), (5635, 28013), (5911, 26705), (8995, 17549), (12535, 12593)]