20781609624

素因数分解:

$2^3\times 3^2\times {\mathrm{31}}^2\times {\mathrm{300347}}^1$

素因数の和:300421

約数の個数: 72

約数和(自身を含む): 58157884980

約数和(自身を除く): 37376275356

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 31, 36, 62, 72, 93, 124, 186, 248, 279, 372, 558, 744, 961, 1116, 1922, 2232, 2883, 3844, 5766, 7688, 8649, 11532, 17298, 23064, 34596, 69192, 300347, 600694, 901041, 1201388, 1802082, 2402776, 2703123, 3604164, 5406246, 7208328, 9310757, 10812492, 18621514, 21624984, 27932271, 37243028, 55864542, 74486056, 83796813, 111729084, 167593626, 223458168, 288633467, 335187252, 577266934, 670374504, 865900401, 1154533868, 1731800802, 2309067736, 2597701203, 3463601604, 5195402406, 6927203208, 10390804812, 20781609624]

約数ペア:

[(1, 20781609624), (2, 10390804812), (3, 6927203208), (4, 5195402406), (6, 3463601604), (8, 2597701203), (9, 2309067736), (12, 1731800802), (18, 1154533868), (24, 865900401), (31, 670374504), (36, 577266934), (62, 335187252), (72, 288633467), (93, 223458168), (124, 167593626), (186, 111729084), (248, 83796813), (279, 74486056), (372, 55864542), (558, 37243028), (744, 27932271), (961, 21624984), (1116, 18621514), (1922, 10812492), (2232, 9310757), (2883, 7208328), (3844, 5406246), (5766, 3604164), (7688, 2703123), (8649, 2402776), (11532, 1802082), (17298, 1201388), (23064, 901041), (34596, 600694), (69192, 300347)]