880702940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{3889}}^1$

素因数の和:3991

約数の個数: 72

約数和(自身を含む): 2033100720

約数和(自身を除く): 1152397780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 169, 260, 268, 335, 338, 670, 676, 845, 871, 1340, 1690, 1742, 3380, 3484, 3889, 4355, 7778, 8710, 11323, 15556, 17420, 19445, 22646, 38890, 45292, 50557, 56615, 77780, 101114, 113230, 202228, 226460, 252785, 260563, 505570, 521126, 657241, 1011140, 1042252, 1302815, 1314482, 2605630, 2628964, 3286205, 3387319, 5211260, 6572410, 6774638, 13144820, 13549276, 16936595, 33873190, 44035147, 67746380, 88070294, 176140588, 220175735, 440351470, 880702940]

約数ペア:

[(1, 880702940), (2, 440351470), (4, 220175735), (5, 176140588), (10, 88070294), (13, 67746380), (20, 44035147), (26, 33873190), (52, 16936595), (65, 13549276), (67, 13144820), (130, 6774638), (134, 6572410), (169, 5211260), (260, 3387319), (268, 3286205), (335, 2628964), (338, 2605630), (670, 1314482), (676, 1302815), (845, 1042252), (871, 1011140), (1340, 657241), (1690, 521126), (1742, 505570), (3380, 260563), (3484, 252785), (3889, 226460), (4355, 202228), (7778, 113230), (8710, 101114), (11323, 77780), (15556, 56615), (17420, 50557), (19445, 45292), (22646, 38890)]