81646680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15823}}^1$

素因数の和:15880

約数の個数: 64

約数和(自身を含む): 250652160

約数和(自身を除く): 169005480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 5160, 15823, 31646, 47469, 63292, 79115, 94938, 126584, 158230, 189876, 237345, 316460, 379752, 474690, 632920, 680389, 949380, 1360778, 1898760, 2041167, 2721556, 3401945, 4082334, 5443112, 6803890, 8164668, 10205835, 13607780, 16329336, 20411670, 27215560, 40823340, 81646680]

約数ペア:

[(1, 81646680), (2, 40823340), (3, 27215560), (4, 20411670), (5, 16329336), (6, 13607780), (8, 10205835), (10, 8164668), (12, 6803890), (15, 5443112), (20, 4082334), (24, 3401945), (30, 2721556), (40, 2041167), (43, 1898760), (60, 1360778), (86, 949380), (120, 680389), (129, 632920), (172, 474690), (215, 379752), (258, 316460), (344, 237345), (430, 189876), (516, 158230), (645, 126584), (860, 94938), (1032, 79115), (1290, 63292), (1720, 47469), (2580, 31646), (5160, 15823)]