80303521.000000000

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137831}}^1$

素因数の和:137873

約数の個数: 32

約数和(自身を含む): 396956160

約数和(自身を除く): 226045720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 137831, 275662, 551324, 689155, 1102648, 1378310, 2756620, 4272761, 5513240, 8545522, 17091044, 21363805, 34182088, 42727610, 85455220, 170910440]

約数ペア:

[(1, 170910440), (2, 85455220), (4, 42727610), (5, 34182088), (8, 21363805), (10, 17091044), (20, 8545522), (31, 5513240), (40, 4272761), (62, 2756620), (124, 1378310), (155, 1102648), (248, 689155), (310, 551324), (620, 275662), (1240, 137831)]