390590080

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{19687}}^1$

素因数の和:19737

約数の個数: 64

約数和(自身を含む): 963924480

約数和(自身を除く): 573334400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 19687, 19840, 39374, 78748, 98435, 157496, 196870, 314992, 393740, 610297, 629984, 787480, 1220594, 1259968, 1574960, 2441188, 2519936, 3051485, 3149920, 4882376, 6102970, 6299840, 9764752, 12205940, 12599680, 19529504, 24411880, 39059008, 48823760, 78118016, 97647520, 195295040, 390590080]

約数ペア:

[(1, 390590080), (2, 195295040), (4, 97647520), (5, 78118016), (8, 48823760), (10, 39059008), (16, 24411880), (20, 19529504), (31, 12599680), (32, 12205940), (40, 9764752), (62, 6299840), (64, 6102970), (80, 4882376), (124, 3149920), (128, 3051485), (155, 2519936), (160, 2441188), (248, 1574960), (310, 1259968), (320, 1220594), (496, 787480), (620, 629984), (640, 610297), (992, 393740), (1240, 314992), (1984, 196870), (2480, 157496), (3968, 98435), (4960, 78748), (9920, 39374), (19687, 19840)]