29902840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67961}}^1$

素因数の和:67983

約数の個数: 32

約数和(自身を含む): 73398960

約数和(自身を除く): 43496120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 67961, 135922, 271844, 339805, 543688, 679610, 747571, 1359220, 1495142, 2718440, 2990284, 3737855, 5980568, 7475710, 14951420, 29902840]

約数ペア:

[(1, 29902840), (2, 14951420), (4, 7475710), (5, 5980568), (8, 3737855), (10, 2990284), (11, 2718440), (20, 1495142), (22, 1359220), (40, 747571), (44, 679610), (55, 543688), (88, 339805), (110, 271844), (220, 135922), (440, 67961)]