281010290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{643}}^1$

素因数の和:827

約数の個数: 64

約数和(自身を含む): 575890560

約数和(自身を除く): 294880270

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 137, 145, 274, 290, 319, 638, 643, 685, 1286, 1370, 1507, 1595, 3014, 3190, 3215, 3973, 6430, 7073, 7535, 7946, 14146, 15070, 18647, 19865, 35365, 37294, 39730, 43703, 70730, 87406, 88091, 93235, 176182, 186470, 205117, 218515, 410234, 437030, 440455, 880910, 969001, 1025585, 1938002, 2051170, 2554639, 4845005, 5109278, 9690010, 12773195, 25546390, 28101029, 56202058, 140505145, 281010290]

約数ペア:

[(1, 281010290), (2, 140505145), (5, 56202058), (10, 28101029), (11, 25546390), (22, 12773195), (29, 9690010), (55, 5109278), (58, 4845005), (110, 2554639), (137, 2051170), (145, 1938002), (274, 1025585), (290, 969001), (319, 880910), (638, 440455), (643, 437030), (685, 410234), (1286, 218515), (1370, 205117), (1507, 186470), (1595, 176182), (3014, 93235), (3190, 88091), (3215, 87406), (3973, 70730), (6430, 43703), (7073, 39730), (7535, 37294), (7946, 35365), (14146, 19865), (15070, 18647)]