223840280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1\times {\mathrm{293}}^1$

素因数の和:644

約数の個数: 64

約数和(自身を含む): 514382400

約数和(自身を除く): 290542120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 269, 284, 293, 355, 538, 568, 586, 710, 1076, 1172, 1345, 1420, 1465, 2152, 2344, 2690, 2840, 2930, 5380, 5860, 10760, 11720, 19099, 20803, 38198, 41606, 76396, 78817, 83212, 95495, 104015, 152792, 157634, 166424, 190990, 208030, 315268, 381980, 394085, 416060, 630536, 763960, 788170, 832120, 1576340, 3152680, 5596007, 11192014, 22384028, 27980035, 44768056, 55960070, 111920140, 223840280]

約数ペア:

[(1, 223840280), (2, 111920140), (4, 55960070), (5, 44768056), (8, 27980035), (10, 22384028), (20, 11192014), (40, 5596007), (71, 3152680), (142, 1576340), (269, 832120), (284, 788170), (293, 763960), (355, 630536), (538, 416060), (568, 394085), (586, 381980), (710, 315268), (1076, 208030), (1172, 190990), (1345, 166424), (1420, 157634), (1465, 152792), (2152, 104015), (2344, 95495), (2690, 83212), (2840, 78817), (2930, 76396), (5380, 41606), (5860, 38198), (10760, 20803), (11720, 19099)]