19328985

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:127

約数の個数: 96

約数和(自身を含む): 39836160

約数和(自身を除く): 20507175

約数列:

[1, 3, 5, 9, 13, 15, 19, 37, 39, 45, 47, 57, 65, 95, 111, 117, 141, 171, 185, 195, 235, 247, 285, 333, 423, 481, 555, 585, 611, 703, 705, 741, 855, 893, 1235, 1443, 1665, 1739, 1833, 2109, 2115, 2223, 2405, 2679, 3055, 3515, 3705, 4329, 4465, 5217, 5499, 6327, 7215, 8037, 8695, 9139, 9165, 10545, 11115, 11609, 13395, 15651, 21645, 22607, 26085, 27417, 27495, 31635, 33041, 34827, 40185, 45695, 58045, 67821, 78255, 82251, 99123, 104481, 113035, 137085, 165205, 174135, 203463, 297369, 339105, 411255, 429533, 495615, 522405, 1017315, 1288599, 1486845, 2147665, 3865797, 6442995, 19328985]

約数ペア:

[(1, 19328985), (3, 6442995), (5, 3865797), (9, 2147665), (13, 1486845), (15, 1288599), (19, 1017315), (37, 522405), (39, 495615), (45, 429533), (47, 411255), (57, 339105), (65, 297369), (95, 203463), (111, 174135), (117, 165205), (141, 137085), (171, 113035), (185, 104481), (195, 99123), (235, 82251), (247, 78255), (285, 67821), (333, 58045), (423, 45695), (481, 40185), (555, 34827), (585, 33041), (611, 31635), (703, 27495), (705, 27417), (741, 26085), (855, 22607), (893, 21645), (1235, 15651), (1443, 13395), (1665, 11609), (1739, 11115), (1833, 10545), (2109, 9165), (2115, 9139), (2223, 8695), (2405, 8037), (2679, 7215), (3055, 6327), (3515, 5499), (3705, 5217), (4329, 4465)]