81606420

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{21589}}^1$

素因数の和:21614

約数の個数: 96

約数和(自身を含む): 290169600

約数和(自身を除く): 208563180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 21589, 43178, 64767, 86356, 107945, 129534, 151123, 194301, 215890, 259068, 302246, 323835, 388602, 431780, 453369, 582903, 604492, 647670, 755615, 777204, 906738, 971505, 1165806, 1295340, 1360107, 1511230, 1813476, 1943010, 2266845, 2331612, 2720214, 2914515, 3022460, 3886020, 4080321, 4533690, 5440428, 5829030, 6800535, 8160642, 9067380, 11658060, 13601070, 16321284, 20401605, 27202140, 40803210, 81606420]

約数ペア:

[(1, 81606420), (2, 40803210), (3, 27202140), (4, 20401605), (5, 16321284), (6, 13601070), (7, 11658060), (9, 9067380), (10, 8160642), (12, 6800535), (14, 5829030), (15, 5440428), (18, 4533690), (20, 4080321), (21, 3886020), (27, 3022460), (28, 2914515), (30, 2720214), (35, 2331612), (36, 2266845), (42, 1943010), (45, 1813476), (54, 1511230), (60, 1360107), (63, 1295340), (70, 1165806), (84, 971505), (90, 906738), (105, 777204), (108, 755615), (126, 647670), (135, 604492), (140, 582903), (180, 453369), (189, 431780), (210, 388602), (252, 323835), (270, 302246), (315, 259068), (378, 215890), (420, 194301), (540, 151123), (630, 129534), (756, 107945), (945, 86356), (1260, 64767), (1890, 43178), (3780, 21589)]