80007280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32261}}^1$

素因数の和:32305

約数の個数: 40

約数和(自身を含む): 192023424

約数和(自身を除く): 112016144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 32261, 64522, 129044, 161305, 258088, 322610, 516176, 645220, 1000091, 1290440, 2000182, 2580880, 4000364, 5000455, 8000728, 10000910, 16001456, 20001820, 40003640, 80007280]

約数ペア:

[(1, 80007280), (2, 40003640), (4, 20001820), (5, 16001456), (8, 10000910), (10, 8000728), (16, 5000455), (20, 4000364), (31, 2580880), (40, 2000182), (62, 1290440), (80, 1000091), (124, 645220), (155, 516176), (248, 322610), (310, 258088), (496, 161305), (620, 129044), (1240, 64522), (2480, 32261)]