291201678980

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1\times {\mathrm{558521}}^1$

素因数の和:558860

約数の個数: 48

約数和(自身を含む): 619289193600

約数和(自身を除く): 328087514620

約数列:

[1, 2, 4, 5, 10, 20, 131, 199, 262, 398, 524, 655, 796, 995, 1310, 1990, 2620, 3980, 26069, 52138, 104276, 130345, 260690, 521380, 558521, 1117042, 2234084, 2792605, 5585210, 11170420, 73166251, 111145679, 146332502, 222291358, 292665004, 365831255, 444582716, 555728395, 731662510, 1111456790, 1463325020, 2222913580, 14560083949, 29120167898, 58240335796, 72800419745, 145600839490, 291201678980]

約数ペア:

[(1, 291201678980), (2, 145600839490), (4, 72800419745), (5, 58240335796), (10, 29120167898), (20, 14560083949), (131, 2222913580), (199, 1463325020), (262, 1111456790), (398, 731662510), (524, 555728395), (655, 444582716), (796, 365831255), (995, 292665004), (1310, 222291358), (1990, 146332502), (2620, 111145679), (3980, 73166251), (26069, 11170420), (52138, 5585210), (104276, 2792605), (130345, 2234084), (260690, 1117042), (521380, 558521)]