990755090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{78569}}^1$

素因数の和:78686

約数の個数: 32

約数和(自身を含む): 1940364720

約数和(自身を除く): 949609630

約数列:

[1, 2, 5, 10, 13, 26, 65, 97, 130, 194, 485, 970, 1261, 2522, 6305, 12610, 78569, 157138, 392845, 785690, 1021397, 2042794, 5106985, 7621193, 10213970, 15242386, 38105965, 76211930, 99075509, 198151018, 495377545, 990755090]

約数ペア:

[(1, 990755090), (2, 495377545), (5, 198151018), (10, 99075509), (13, 76211930), (26, 38105965), (65, 15242386), (97, 10213970), (130, 7621193), (194, 5106985), (485, 2042794), (970, 1021397), (1261, 785690), (2522, 392845), (6305, 157138), (12610, 78569)]