38381980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21089}}^1$

素因数の和:21118

約数の個数: 48

約数和(自身を含む): 99207360

約数和(自身を除く): 60825380

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 21089, 42178, 84356, 105445, 147623, 210890, 274157, 295246, 421780, 548314, 590492, 738115, 1096628, 1370785, 1476230, 1919099, 2741570, 2952460, 3838198, 5483140, 7676396, 9595495, 19190990, 38381980]

約数ペア:

[(1, 38381980), (2, 19190990), (4, 9595495), (5, 7676396), (7, 5483140), (10, 3838198), (13, 2952460), (14, 2741570), (20, 1919099), (26, 1476230), (28, 1370785), (35, 1096628), (52, 738115), (65, 590492), (70, 548314), (91, 421780), (130, 295246), (140, 274157), (182, 210890), (260, 147623), (364, 105445), (455, 84356), (910, 42178), (1820, 21089)]