638834472

素因数分解:

$2^3\times 3^3\times {\mathrm{389}}^1\times {\mathrm{7603}}^1$

素因数の和:8007

約数の個数: 64

約数和(自身を含む): 1779336000

約数和(自身を除く): 1140501528

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 389, 778, 1167, 1556, 2334, 3112, 3501, 4668, 7002, 7603, 9336, 10503, 14004, 15206, 21006, 22809, 28008, 30412, 42012, 45618, 60824, 68427, 84024, 91236, 136854, 182472, 205281, 273708, 410562, 547416, 821124, 1642248, 2957567, 5915134, 8872701, 11830268, 17745402, 23660536, 26618103, 35490804, 53236206, 70981608, 79854309, 106472412, 159708618, 212944824, 319417236, 638834472]

約数ペア:

[(1, 638834472), (2, 319417236), (3, 212944824), (4, 159708618), (6, 106472412), (8, 79854309), (9, 70981608), (12, 53236206), (18, 35490804), (24, 26618103), (27, 23660536), (36, 17745402), (54, 11830268), (72, 8872701), (108, 5915134), (216, 2957567), (389, 1642248), (778, 821124), (1167, 547416), (1556, 410562), (2334, 273708), (3112, 205281), (3501, 182472), (4668, 136854), (7002, 91236), (7603, 84024), (9336, 68427), (10503, 60824), (14004, 45618), (15206, 42012), (21006, 30412), (22809, 28008)]