208881972

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^3\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:207

約数の個数: 144

約数和(自身を含む): 606424000

約数和(自身を除く): 397542028

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 139, 156, 169, 171, 228, 234, 247, 278, 338, 342, 417, 468, 494, 507, 556, 676, 684, 741, 834, 988, 1014, 1251, 1482, 1521, 1668, 1807, 2028, 2197, 2223, 2502, 2641, 2964, 3042, 3211, 3614, 4394, 4446, 5004, 5282, 5421, 6084, 6422, 6591, 7228, 7923, 8788, 8892, 9633, 10564, 10842, 12844, 13182, 15846, 16263, 19266, 19773, 21684, 23491, 23769, 26364, 28899, 31692, 32526, 34333, 38532, 39546, 41743, 46982, 47538, 57798, 65052, 68666, 70473, 79092, 83486, 93964, 95076, 102999, 115596, 125229, 137332, 140946, 166972, 205998, 211419, 250458, 281892, 305383, 308997, 375687, 411996, 422838, 446329, 500916, 610766, 617994, 751374, 845676, 892658, 916149, 1221532, 1235988, 1338987, 1502748, 1785316, 1832298, 2677974, 2748447, 3664596, 4016961, 5355948, 5496894, 5802277, 8033922, 10993788, 11604554, 16067844, 17406831, 23209108, 34813662, 52220493, 69627324, 104440986, 208881972]

約数ペア:

[(1, 208881972), (2, 104440986), (3, 69627324), (4, 52220493), (6, 34813662), (9, 23209108), (12, 17406831), (13, 16067844), (18, 11604554), (19, 10993788), (26, 8033922), (36, 5802277), (38, 5496894), (39, 5355948), (52, 4016961), (57, 3664596), (76, 2748447), (78, 2677974), (114, 1832298), (117, 1785316), (139, 1502748), (156, 1338987), (169, 1235988), (171, 1221532), (228, 916149), (234, 892658), (247, 845676), (278, 751374), (338, 617994), (342, 610766), (417, 500916), (468, 446329), (494, 422838), (507, 411996), (556, 375687), (676, 308997), (684, 305383), (741, 281892), (834, 250458), (988, 211419), (1014, 205998), (1251, 166972), (1482, 140946), (1521, 137332), (1668, 125229), (1807, 115596), (2028, 102999), (2197, 95076), (2223, 93964), (2502, 83486), (2641, 79092), (2964, 70473), (3042, 68666), (3211, 65052), (3614, 57798), (4394, 47538), (4446, 46982), (5004, 41743), (5282, 39546), (5421, 38532), (6084, 34333), (6422, 32526), (6591, 31692), (7228, 28899), (7923, 26364), (8788, 23769), (8892, 23491), (9633, 21684), (10564, 19773), (10842, 19266), (12844, 16263), (13182, 15846)]