1311704981360

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1\times {\mathrm{331889}}^1$

素因数の和:332418

約数の個数: 80

約数和(自身を含む): 3081638476800

約数和(自身を除く): 1769933495440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 389, 508, 635, 778, 1016, 1270, 1556, 1945, 2032, 2540, 3112, 3890, 5080, 6224, 7780, 10160, 15560, 31120, 49403, 98806, 197612, 247015, 331889, 395224, 494030, 663778, 790448, 988060, 1327556, 1659445, 1976120, 2655112, 3318890, 3952240, 5310224, 6637780, 13275560, 26551120, 42149903, 84299806, 129104821, 168599612, 210749515, 258209642, 337199224, 421499030, 516419284, 645524105, 674398448, 842998060, 1032838568, 1291048210, 1685996120, 2065677136, 2582096420, 3371992240, 5164192840, 10328385680, 16396312267, 32792624534, 65585249068, 81981561335, 131170498136, 163963122670, 262340996272, 327926245340, 655852490680, 1311704981360]

約数ペア:

[(1, 1311704981360), (2, 655852490680), (4, 327926245340), (5, 262340996272), (8, 163963122670), (10, 131170498136), (16, 81981561335), (20, 65585249068), (40, 32792624534), (80, 16396312267), (127, 10328385680), (254, 5164192840), (389, 3371992240), (508, 2582096420), (635, 2065677136), (778, 1685996120), (1016, 1291048210), (1270, 1032838568), (1556, 842998060), (1945, 674398448), (2032, 645524105), (2540, 516419284), (3112, 421499030), (3890, 337199224), (5080, 258209642), (6224, 210749515), (7780, 168599612), (10160, 129104821), (15560, 84299806), (31120, 42149903), (49403, 26551120), (98806, 13275560), (197612, 6637780), (247015, 5310224), (331889, 3952240), (395224, 3318890), (494030, 2655112), (663778, 1976120), (790448, 1659445), (988060, 1327556)]