66928860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5237}}^1$

素因数の和:5323

約数の個数: 72

約数和(自身を含む): 205916256

約数和(自身を除く): 138987396

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, 5237, 6390, 10474, 12780, 15711, 20948, 26185, 31422, 47133, 52370, 62844, 78555, 94266, 104740, 157110, 188532, 235665, 314220, 371827, 471330, 743654, 942660, 1115481, 1487308, 1859135, 2230962, 3346443, 3718270, 4461924, 5577405, 6692886, 7436540, 11154810, 13385772, 16732215, 22309620, 33464430, 66928860]

約数ペア:

[(1, 66928860), (2, 33464430), (3, 22309620), (4, 16732215), (5, 13385772), (6, 11154810), (9, 7436540), (10, 6692886), (12, 5577405), (15, 4461924), (18, 3718270), (20, 3346443), (30, 2230962), (36, 1859135), (45, 1487308), (60, 1115481), (71, 942660), (90, 743654), (142, 471330), (180, 371827), (213, 314220), (284, 235665), (355, 188532), (426, 157110), (639, 104740), (710, 94266), (852, 78555), (1065, 62844), (1278, 52370), (1420, 47133), (2130, 31422), (2556, 26185), (3195, 20948), (4260, 15711), (5237, 12780), (6390, 10474)]