289960360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{1187}}^1$

素因数の和:1426

約数の個数: 64

約数和(自身を含む): 677445120

約数和(自身を除く): 387484760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 197, 248, 310, 394, 620, 788, 985, 1187, 1240, 1576, 1970, 2374, 3940, 4748, 5935, 6107, 7880, 9496, 11870, 12214, 23740, 24428, 30535, 36797, 47480, 48856, 61070, 73594, 122140, 147188, 183985, 233839, 244280, 294376, 367970, 467678, 735940, 935356, 1169195, 1471880, 1870712, 2338390, 4676780, 7249009, 9353560, 14498018, 28996036, 36245045, 57992072, 72490090, 144980180, 289960360]

約数ペア:

[(1, 289960360), (2, 144980180), (4, 72490090), (5, 57992072), (8, 36245045), (10, 28996036), (20, 14498018), (31, 9353560), (40, 7249009), (62, 4676780), (124, 2338390), (155, 1870712), (197, 1471880), (248, 1169195), (310, 935356), (394, 735940), (620, 467678), (788, 367970), (985, 294376), (1187, 244280), (1240, 233839), (1576, 183985), (1970, 147188), (2374, 122140), (3940, 73594), (4748, 61070), (5935, 48856), (6107, 47480), (7880, 36797), (9496, 30535), (11870, 24428), (12214, 23740)]