218040340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{3923}}^1$

素因数の和:4336

約数の個数: 48

約数和(自身を含む): 524748672

約数和(自身を除く): 306708332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 397, 794, 1588, 1985, 2779, 3923, 3970, 5558, 7846, 7940, 11116, 13895, 15692, 19615, 27461, 27790, 39230, 54922, 55580, 78460, 109844, 137305, 274610, 549220, 1557431, 3114862, 6229724, 7787155, 10902017, 15574310, 21804034, 31148620, 43608068, 54510085, 109020170, 218040340]

約数ペア:

[(1, 218040340), (2, 109020170), (4, 54510085), (5, 43608068), (7, 31148620), (10, 21804034), (14, 15574310), (20, 10902017), (28, 7787155), (35, 6229724), (70, 3114862), (140, 1557431), (397, 549220), (794, 274610), (1588, 137305), (1985, 109844), (2779, 78460), (3923, 55580), (3970, 54922), (5558, 39230), (7846, 27790), (7940, 27461), (11116, 19615), (13895, 15692)]