168172020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13159}}^1$

素因数の和:13245

約数の個数: 72

約数和(自身を含む): 517345920

約数和(自身を除く): 349173900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 13159, 26318, 39477, 52636, 65795, 78954, 118431, 131590, 157908, 197385, 236862, 263180, 394770, 473724, 592155, 789540, 934289, 1184310, 1868578, 2368620, 2802867, 3737156, 4671445, 5605734, 8408601, 9342890, 11211468, 14014335, 16817202, 18685780, 28028670, 33634404, 42043005, 56057340, 84086010, 168172020]

約数ペア:

[(1, 168172020), (2, 84086010), (3, 56057340), (4, 42043005), (5, 33634404), (6, 28028670), (9, 18685780), (10, 16817202), (12, 14014335), (15, 11211468), (18, 9342890), (20, 8408601), (30, 5605734), (36, 4671445), (45, 3737156), (60, 2802867), (71, 2368620), (90, 1868578), (142, 1184310), (180, 934289), (213, 789540), (284, 592155), (355, 473724), (426, 394770), (639, 263180), (710, 236862), (852, 197385), (1065, 157908), (1278, 131590), (1420, 118431), (2130, 78954), (2556, 65795), (3195, 52636), (4260, 39477), (6390, 26318), (12780, 13159)]