28608340

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 61970832

約数和(自身を除く): 33362492

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 137, 197, 212, 265, 274, 394, 530, 548, 685, 788, 985, 1060, 1370, 1970, 2740, 3940, 7261, 10441, 14522, 20882, 26989, 29044, 36305, 41764, 52205, 53978, 72610, 104410, 107956, 134945, 145220, 208820, 269890, 539780, 1430417, 2860834, 5721668, 7152085, 14304170, 28608340]

約数ペア:

[(1, 28608340), (2, 14304170), (4, 7152085), (5, 5721668), (10, 2860834), (20, 1430417), (53, 539780), (106, 269890), (137, 208820), (197, 145220), (212, 134945), (265, 107956), (274, 104410), (394, 72610), (530, 53978), (548, 52205), (685, 41764), (788, 36305), (985, 29044), (1060, 26989), (1370, 20882), (1970, 14522), (2740, 10441), (3940, 7261)]