321598960

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{1259}}^1$

素因数の和:1406

約数の個数: 80

約数和(自身を含む): 779950080

約数和(自身を除く): 458351120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 103, 124, 155, 206, 248, 310, 412, 496, 515, 620, 824, 1030, 1240, 1259, 1648, 2060, 2480, 2518, 3193, 4120, 5036, 6295, 6386, 8240, 10072, 12590, 12772, 15965, 20144, 25180, 25544, 31930, 39029, 50360, 51088, 63860, 78058, 100720, 127720, 129677, 156116, 195145, 255440, 259354, 312232, 390290, 518708, 624464, 648385, 780580, 1037416, 1296770, 1561160, 2074832, 2593540, 3122320, 4019987, 5187080, 8039974, 10374160, 16079948, 20099935, 32159896, 40199870, 64319792, 80399740, 160799480, 321598960]

約数ペア:

[(1, 321598960), (2, 160799480), (4, 80399740), (5, 64319792), (8, 40199870), (10, 32159896), (16, 20099935), (20, 16079948), (31, 10374160), (40, 8039974), (62, 5187080), (80, 4019987), (103, 3122320), (124, 2593540), (155, 2074832), (206, 1561160), (248, 1296770), (310, 1037416), (412, 780580), (496, 648385), (515, 624464), (620, 518708), (824, 390290), (1030, 312232), (1240, 259354), (1259, 255440), (1648, 195145), (2060, 156116), (2480, 129677), (2518, 127720), (3193, 100720), (4120, 78058), (5036, 63860), (6295, 51088), (6386, 50360), (8240, 39029), (10072, 31930), (12590, 25544), (12772, 25180), (15965, 20144)]