2480491220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{21491}}^1$

素因数の和:21728

約数の個数: 48

約数和(自身を含む): 5415984000

約数和(自身を除く): 2935492780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 199, 290, 398, 580, 796, 995, 1990, 3980, 5771, 11542, 21491, 23084, 28855, 42982, 57710, 85964, 107455, 115420, 214910, 429820, 623239, 1246478, 2492956, 3116195, 4276709, 6232390, 8553418, 12464780, 17106836, 21383545, 42767090, 85534180, 124024561, 248049122, 496098244, 620122805, 1240245610, 2480491220]

約数ペア:

[(1, 2480491220), (2, 1240245610), (4, 620122805), (5, 496098244), (10, 248049122), (20, 124024561), (29, 85534180), (58, 42767090), (116, 21383545), (145, 17106836), (199, 12464780), (290, 8553418), (398, 6232390), (580, 4276709), (796, 3116195), (995, 2492956), (1990, 1246478), (3980, 623239), (5771, 429820), (11542, 214910), (21491, 115420), (23084, 107455), (28855, 85964), (42982, 57710)]