1277124640

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{725639}}^1$

素因数の和:725665

約数の個数: 48

約数和(自身を含む): 3291503040

約数和(自身を除く): 2014378400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 725639, 1451278, 2902556, 3628195, 5805112, 7256390, 7982029, 11610224, 14512780, 15964058, 23220448, 29025560, 31928116, 39910145, 58051120, 63856232, 79820290, 116102240, 127712464, 159640580, 255424928, 319281160, 638562320, 1277124640]

約数ペア:

[(1, 1277124640), (2, 638562320), (4, 319281160), (5, 255424928), (8, 159640580), (10, 127712464), (11, 116102240), (16, 79820290), (20, 63856232), (22, 58051120), (32, 39910145), (40, 31928116), (44, 29025560), (55, 23220448), (80, 15964058), (88, 14512780), (110, 11610224), (160, 7982029), (176, 7256390), (220, 5805112), (352, 3628195), (440, 2902556), (880, 1451278), (1760, 725639)]