4889840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3217}}^1$

素因数の和:3249

約数の個数: 40

約数和(自身を含む): 11970960

約数和(自身を除く): 7081120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 3217, 6434, 12868, 16085, 25736, 32170, 51472, 61123, 64340, 122246, 128680, 244492, 257360, 305615, 488984, 611230, 977968, 1222460, 2444920, 4889840]

約数ペア:

[(1, 4889840), (2, 2444920), (4, 1222460), (5, 977968), (8, 611230), (10, 488984), (16, 305615), (19, 257360), (20, 244492), (38, 128680), (40, 122246), (76, 64340), (80, 61123), (95, 51472), (152, 32170), (190, 25736), (304, 16085), (380, 12868), (760, 6434), (1520, 3217)]