20199089916

素因数分解:

$2^2\times 3^2\times {\mathrm{491}}^1\times {\mathrm{631}}^1\times {\mathrm{1811}}^1$

素因数の和:2943

約数の個数: 72

約数和(自身を含む): 51272178048

約数和(自身を除く): 31073088132

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 491, 631, 982, 1262, 1473, 1811, 1893, 1964, 2524, 2946, 3622, 3786, 4419, 5433, 5679, 5892, 7244, 7572, 8838, 10866, 11358, 16299, 17676, 21732, 22716, 32598, 65196, 309821, 619642, 889201, 929463, 1142741, 1239284, 1778402, 1858926, 2285482, 2667603, 2788389, 3428223, 3556804, 3717852, 4570964, 5335206, 5576778, 6856446, 8002809, 10284669, 10670412, 11153556, 13712892, 16005618, 20569338, 32011236, 41138676, 561085831, 1122171662, 1683257493, 2244343324, 3366514986, 5049772479, 6733029972, 10099544958, 20199089916]

約数ペア:

[(1, 20199089916), (2, 10099544958), (3, 6733029972), (4, 5049772479), (6, 3366514986), (9, 2244343324), (12, 1683257493), (18, 1122171662), (36, 561085831), (491, 41138676), (631, 32011236), (982, 20569338), (1262, 16005618), (1473, 13712892), (1811, 11153556), (1893, 10670412), (1964, 10284669), (2524, 8002809), (2946, 6856446), (3622, 5576778), (3786, 5335206), (4419, 4570964), (5433, 3717852), (5679, 3556804), (5892, 3428223), (7244, 2788389), (7572, 2667603), (8838, 2285482), (10866, 1858926), (11358, 1778402), (16299, 1239284), (17676, 1142741), (21732, 929463), (22716, 889201), (32598, 619642), (65196, 309821)]