28751778

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:380

約数の個数: 72

約数和(自身を含む): 70294224

約数和(自身を除く): 41542446

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 43, 66, 86, 99, 121, 129, 198, 242, 258, 307, 363, 387, 473, 614, 726, 774, 921, 946, 1089, 1419, 1842, 2178, 2763, 2838, 3377, 4257, 5203, 5526, 6754, 8514, 10131, 10406, 13201, 15609, 20262, 26402, 30393, 31218, 37147, 39603, 46827, 60786, 74294, 79206, 93654, 111441, 118809, 145211, 222882, 237618, 290422, 334323, 435633, 668646, 871266, 1306899, 1597321, 2613798, 3194642, 4791963, 9583926, 14375889, 28751778]

約数ペア:

[(1, 28751778), (2, 14375889), (3, 9583926), (6, 4791963), (9, 3194642), (11, 2613798), (18, 1597321), (22, 1306899), (33, 871266), (43, 668646), (66, 435633), (86, 334323), (99, 290422), (121, 237618), (129, 222882), (198, 145211), (242, 118809), (258, 111441), (307, 93654), (363, 79206), (387, 74294), (473, 60786), (614, 46827), (726, 39603), (774, 37147), (921, 31218), (946, 30393), (1089, 26402), (1419, 20262), (1842, 15609), (2178, 13201), (2763, 10406), (2838, 10131), (3377, 8514), (4257, 6754), (5203, 5526)]