721644

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1$

素因数の和:107

約数の個数: 72

約数和(自身を含む): 2145024

約数和(自身を除く): 1423380

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 71, 77, 84, 121, 132, 142, 154, 213, 231, 242, 284, 308, 363, 426, 462, 484, 497, 726, 781, 847, 852, 924, 994, 1452, 1491, 1562, 1694, 1988, 2343, 2541, 2982, 3124, 3388, 4686, 5082, 5467, 5964, 8591, 9372, 10164, 10934, 16401, 17182, 21868, 25773, 32802, 34364, 51546, 60137, 65604, 103092, 120274, 180411, 240548, 360822, 721644]

約数ペア:

[(1, 721644), (2, 360822), (3, 240548), (4, 180411), (6, 120274), (7, 103092), (11, 65604), (12, 60137), (14, 51546), (21, 34364), (22, 32802), (28, 25773), (33, 21868), (42, 17182), (44, 16401), (66, 10934), (71, 10164), (77, 9372), (84, 8591), (121, 5964), (132, 5467), (142, 5082), (154, 4686), (213, 3388), (231, 3124), (242, 2982), (284, 2541), (308, 2343), (363, 1988), (426, 1694), (462, 1562), (484, 1491), (497, 1452), (726, 994), (781, 924), (847, 852)]