290709945

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{643}}^1$

素因数の和:871

約数の個数: 64

約数和(自身を含む): 550851840

約数和(自身を除く): 260141895

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 197, 255, 459, 591, 643, 765, 985, 1773, 1929, 2295, 2955, 3215, 3349, 5319, 5787, 8865, 9645, 10047, 10931, 16745, 17361, 26595, 28935, 30141, 32793, 50235, 54655, 86805, 90423, 98379, 126671, 150705, 163965, 295137, 380013, 452115, 491895, 633355, 1140039, 1475685, 1900065, 2153407, 3420117, 5700195, 6460221, 10767035, 17100585, 19380663, 32301105, 58141989, 96903315, 290709945]

約数ペア:

[(1, 290709945), (3, 96903315), (5, 58141989), (9, 32301105), (15, 19380663), (17, 17100585), (27, 10767035), (45, 6460221), (51, 5700195), (85, 3420117), (135, 2153407), (153, 1900065), (197, 1475685), (255, 1140039), (459, 633355), (591, 491895), (643, 452115), (765, 380013), (985, 295137), (1773, 163965), (1929, 150705), (2295, 126671), (2955, 98379), (3215, 90423), (3349, 86805), (5319, 54655), (5787, 50235), (8865, 32793), (9645, 30141), (10047, 28935), (10931, 26595), (16745, 17361)]