1890489601

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{281}}^1$

素因数の和:383

約数の個数: 72

約数和(自身を含む): 2635621632

約数和(自身を除く): 745132031

約数列:

[1, 7, 11, 13, 47, 77, 91, 121, 143, 169, 281, 329, 517, 611, 847, 1001, 1183, 1573, 1859, 1967, 3091, 3619, 3653, 4277, 5687, 6721, 7943, 11011, 13013, 13207, 20449, 21637, 25571, 34001, 39809, 40183, 47047, 47489, 55601, 73931, 87373, 92449, 143143, 145277, 171691, 238007, 281281, 332423, 442013, 517517, 522379, 611611, 961103, 1016939, 1201837, 1598047, 1888601, 2231983, 3094091, 3656653, 5746169, 6727721, 11186329, 13220207, 15623881, 20774611, 24551813, 40223183, 145422277, 171862691, 270069943, 1890489601]

約数ペア:

[(1, 1890489601), (7, 270069943), (11, 171862691), (13, 145422277), (47, 40223183), (77, 24551813), (91, 20774611), (121, 15623881), (143, 13220207), (169, 11186329), (281, 6727721), (329, 5746169), (517, 3656653), (611, 3094091), (847, 2231983), (1001, 1888601), (1183, 1598047), (1573, 1201837), (1859, 1016939), (1967, 961103), (3091, 611611), (3619, 522379), (3653, 517517), (4277, 442013), (5687, 332423), (6721, 281281), (7943, 238007), (11011, 171691), (13013, 145277), (13207, 143143), (20449, 92449), (21637, 87373), (25571, 73931), (34001, 55601), (39809, 47489), (40183, 47047)]