243991780

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{146983}}^1$

素因数の和:147075

約数の個数: 24

約数和(自身を含む): 518559552

約数和(自身を除く): 274567772

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 146983, 293966, 587932, 734915, 1469830, 2939660, 12199589, 24399178, 48798356, 60997945, 121995890, 243991780]

約数ペア:

[(1, 243991780), (2, 121995890), (4, 60997945), (5, 48798356), (10, 24399178), (20, 12199589), (83, 2939660), (166, 1469830), (332, 734915), (415, 587932), (830, 293966), (1660, 146983)]