7745780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{907}}^1$

素因数の和:984

約数の個数: 48

約数和(自身を含む): 18915456

約数和(自身を除く): 11169676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 907, 1220, 1708, 1814, 2135, 3628, 4270, 4535, 6349, 8540, 9070, 12698, 18140, 25396, 31745, 55327, 63490, 110654, 126980, 221308, 276635, 387289, 553270, 774578, 1106540, 1549156, 1936445, 3872890, 7745780]

約数ペア:

[(1, 7745780), (2, 3872890), (4, 1936445), (5, 1549156), (7, 1106540), (10, 774578), (14, 553270), (20, 387289), (28, 276635), (35, 221308), (61, 126980), (70, 110654), (122, 63490), (140, 55327), (244, 31745), (305, 25396), (427, 18140), (610, 12698), (854, 9070), (907, 8540), (1220, 6349), (1708, 4535), (1814, 4270), (2135, 3628)]