12978840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{15451}}^1$

素因数の和:15472

約数の個数: 64

約数和(自身を含む): 44501760

約数和(自身を除く): 31522920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 15451, 30902, 46353, 61804, 77255, 92706, 108157, 123608, 154510, 185412, 216314, 231765, 309020, 324471, 370824, 432628, 463530, 540785, 618040, 648942, 865256, 927060, 1081570, 1297884, 1622355, 1854120, 2163140, 2595768, 3244710, 4326280, 6489420, 12978840]

約数ペア:

[(1, 12978840), (2, 6489420), (3, 4326280), (4, 3244710), (5, 2595768), (6, 2163140), (7, 1854120), (8, 1622355), (10, 1297884), (12, 1081570), (14, 927060), (15, 865256), (20, 648942), (21, 618040), (24, 540785), (28, 463530), (30, 432628), (35, 370824), (40, 324471), (42, 309020), (56, 231765), (60, 216314), (70, 185412), (84, 154510), (105, 123608), (120, 108157), (140, 92706), (168, 77255), (210, 61804), (280, 46353), (420, 30902), (840, 15451)]