142455280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{161881}}^1$

素因数の和:161905

約数の個数: 40

約数和(自身を含む): 361320624

約数和(自身を除く): 218865344

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 161881, 323762, 647524, 809405, 1295048, 1618810, 1780691, 2590096, 3237620, 3561382, 6475240, 7122764, 8903455, 12950480, 14245528, 17806910, 28491056, 35613820, 71227640, 142455280]

約数ペア:

[(1, 142455280), (2, 71227640), (4, 35613820), (5, 28491056), (8, 17806910), (10, 14245528), (11, 12950480), (16, 8903455), (20, 7122764), (22, 6475240), (40, 3561382), (44, 3237620), (55, 2590096), (80, 1780691), (88, 1618810), (110, 1295048), (176, 809405), (220, 647524), (440, 323762), (880, 161881)]