12980431380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{30905789}}^1$

素因数の和:30905808

約数の個数: 48

約数和(自身を含む): 41537381760

約数和(自身を除く): 28556950380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 30905789, 61811578, 92717367, 123623156, 154528945, 185434734, 216340523, 309057890, 370869468, 432681046, 463586835, 618115780, 649021569, 865362092, 927173670, 1081702615, 1298043138, 1854347340, 2163405230, 2596086276, 3245107845, 4326810460, 6490215690, 12980431380]

約数ペア:

[(1, 12980431380), (2, 6490215690), (3, 4326810460), (4, 3245107845), (5, 2596086276), (6, 2163405230), (7, 1854347340), (10, 1298043138), (12, 1081702615), (14, 927173670), (15, 865362092), (20, 649021569), (21, 618115780), (28, 463586835), (30, 432681046), (35, 370869468), (42, 309057890), (60, 216340523), (70, 185434734), (84, 154528945), (105, 123623156), (140, 92717367), (210, 61811578), (420, 30905789)]