289443680

素因数分解:

$2^5\times 5^1\times {\mathrm{257}}^1\times {\mathrm{7039}}^1$

素因数の和:7311

約数の個数: 48

約数和(自身を含む): 686568960

約数和(自身を除く): 397125280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 514, 1028, 1285, 2056, 2570, 4112, 5140, 7039, 8224, 10280, 14078, 20560, 28156, 35195, 41120, 56312, 70390, 112624, 140780, 225248, 281560, 563120, 1126240, 1809023, 3618046, 7236092, 9045115, 14472184, 18090230, 28944368, 36180460, 57888736, 72360920, 144721840, 289443680]

約数ペア:

[(1, 289443680), (2, 144721840), (4, 72360920), (5, 57888736), (8, 36180460), (10, 28944368), (16, 18090230), (20, 14472184), (32, 9045115), (40, 7236092), (80, 3618046), (160, 1809023), (257, 1126240), (514, 563120), (1028, 281560), (1285, 225248), (2056, 140780), (2570, 112624), (4112, 70390), (5140, 56312), (7039, 41120), (8224, 35195), (10280, 28156), (14078, 20560)]