19748752

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{389}}^1$

素因数の和:583

約数の個数: 40

約数和(自身を含む): 40622400

約数和(自身を除く): 20873648

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 167, 304, 334, 389, 668, 778, 1336, 1556, 2672, 3112, 3173, 6224, 6346, 7391, 12692, 14782, 25384, 29564, 50768, 59128, 64963, 118256, 129926, 259852, 519704, 1039408, 1234297, 2468594, 4937188, 9874376, 19748752]

約数ペア:

[(1, 19748752), (2, 9874376), (4, 4937188), (8, 2468594), (16, 1234297), (19, 1039408), (38, 519704), (76, 259852), (152, 129926), (167, 118256), (304, 64963), (334, 59128), (389, 50768), (668, 29564), (778, 25384), (1336, 14782), (1556, 12692), (2672, 7391), (3112, 6346), (3173, 6224)]