820680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{977}}^1$

素因数の和:998

約数の個数: 64

約数和(自身を含む): 2816640

約数和(自身を除く): 1995960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 977, 1954, 2931, 3908, 4885, 5862, 6839, 7816, 9770, 11724, 13678, 14655, 19540, 20517, 23448, 27356, 29310, 34195, 39080, 41034, 54712, 58620, 68390, 82068, 102585, 117240, 136780, 164136, 205170, 273560, 410340, 820680]

約数ペア:

[(1, 820680), (2, 410340), (3, 273560), (4, 205170), (5, 164136), (6, 136780), (7, 117240), (8, 102585), (10, 82068), (12, 68390), (14, 58620), (15, 54712), (20, 41034), (21, 39080), (24, 34195), (28, 29310), (30, 27356), (35, 23448), (40, 20517), (42, 19540), (56, 14655), (60, 13678), (70, 11724), (84, 9770), (105, 7816), (120, 6839), (140, 5862), (168, 4885), (210, 3908), (280, 2931), (420, 1954), (840, 977)]