7286440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{491}}^1$

素因数の和:562

約数の個数: 64

約数和(自身を含む): 19128960

約数和(自身を除く): 11842520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 106, 140, 212, 265, 280, 371, 424, 491, 530, 742, 982, 1060, 1484, 1855, 1964, 2120, 2455, 2968, 3437, 3710, 3928, 4910, 6874, 7420, 9820, 13748, 14840, 17185, 19640, 26023, 27496, 34370, 52046, 68740, 104092, 130115, 137480, 182161, 208184, 260230, 364322, 520460, 728644, 910805, 1040920, 1457288, 1821610, 3643220, 7286440]

約数ペア:

[(1, 7286440), (2, 3643220), (4, 1821610), (5, 1457288), (7, 1040920), (8, 910805), (10, 728644), (14, 520460), (20, 364322), (28, 260230), (35, 208184), (40, 182161), (53, 137480), (56, 130115), (70, 104092), (106, 68740), (140, 52046), (212, 34370), (265, 27496), (280, 26023), (371, 19640), (424, 17185), (491, 14840), (530, 13748), (742, 9820), (982, 7420), (1060, 6874), (1484, 4910), (1855, 3928), (1964, 3710), (2120, 3437), (2455, 2968)]