280284004

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{70001}}^1$

素因数の和:70036

約数の個数: 48

約数和(自身を含む): 658578816

約数和(自身を除く): 378294812

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 70001, 140002, 280004, 490007, 770011, 910013, 980014, 1540022, 1820026, 1960028, 3080044, 3640052, 5390077, 6370091, 10010143, 10780154, 12740182, 20020286, 21560308, 25480364, 40040572, 70071001, 140142002, 280284004]

約数ペア:

[(1, 280284004), (2, 140142002), (4, 70071001), (7, 40040572), (11, 25480364), (13, 21560308), (14, 20020286), (22, 12740182), (26, 10780154), (28, 10010143), (44, 6370091), (52, 5390077), (77, 3640052), (91, 3080044), (143, 1960028), (154, 1820026), (182, 1540022), (286, 980014), (308, 910013), (364, 770011), (572, 490007), (1001, 280004), (2002, 140002), (4004, 70001)]