640607076

素因数分解:

$2^2\times 3^3\times {\mathrm{139}}^2\times {\mathrm{307}}^1$

素因数の和:598

約数の個数: 72

約数和(自身を含む): 1678316640

約数和(自身を除く): 1037709564

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 139, 278, 307, 417, 556, 614, 834, 921, 1228, 1251, 1668, 1842, 2502, 2763, 3684, 3753, 5004, 5526, 7506, 8289, 11052, 15012, 16578, 19321, 33156, 38642, 42673, 57963, 77284, 85346, 115926, 128019, 170692, 173889, 231852, 256038, 347778, 384057, 512076, 521667, 695556, 768114, 1043334, 1152171, 1536228, 2086668, 2304342, 4608684, 5931547, 11863094, 17794641, 23726188, 35589282, 53383923, 71178564, 106767846, 160151769, 213535692, 320303538, 640607076]

約数ペア:

[(1, 640607076), (2, 320303538), (3, 213535692), (4, 160151769), (6, 106767846), (9, 71178564), (12, 53383923), (18, 35589282), (27, 23726188), (36, 17794641), (54, 11863094), (108, 5931547), (139, 4608684), (278, 2304342), (307, 2086668), (417, 1536228), (556, 1152171), (614, 1043334), (834, 768114), (921, 695556), (1228, 521667), (1251, 512076), (1668, 384057), (1842, 347778), (2502, 256038), (2763, 231852), (3684, 173889), (3753, 170692), (5004, 128019), (5526, 115926), (7506, 85346), (8289, 77284), (11052, 57963), (15012, 42673), (16578, 38642), (19321, 33156)]