80440984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{40709}}^1$

素因数の和:40747

約数の個数: 32

約数和(自身を含む): 170982000

約数和(自身を除く): 90541016

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 40709, 81418, 162836, 325672, 529217, 773471, 1058434, 1546942, 2116868, 3093884, 4233736, 6187768, 10055123, 20110246, 40220492, 80440984]

約数ペア:

[(1, 80440984), (2, 40220492), (4, 20110246), (8, 10055123), (13, 6187768), (19, 4233736), (26, 3093884), (38, 2116868), (52, 1546942), (76, 1058434), (104, 773471), (152, 529217), (247, 325672), (494, 162836), (988, 81418), (1976, 40709)]