7805840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:336

約数の個数: 80

約数和(自身を含む): 21212928

約数和(自身を除く): 13407088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 53, 56, 70, 80, 106, 112, 140, 212, 263, 265, 280, 371, 424, 526, 530, 560, 742, 848, 1052, 1060, 1315, 1484, 1841, 1855, 2104, 2120, 2630, 2968, 3682, 3710, 4208, 4240, 5260, 5936, 7364, 7420, 9205, 10520, 13939, 14728, 14840, 18410, 21040, 27878, 29456, 29680, 36820, 55756, 69695, 73640, 97573, 111512, 139390, 147280, 195146, 223024, 278780, 390292, 487865, 557560, 780584, 975730, 1115120, 1561168, 1951460, 3902920, 7805840]

約数ペア:

[(1, 7805840), (2, 3902920), (4, 1951460), (5, 1561168), (7, 1115120), (8, 975730), (10, 780584), (14, 557560), (16, 487865), (20, 390292), (28, 278780), (35, 223024), (40, 195146), (53, 147280), (56, 139390), (70, 111512), (80, 97573), (106, 73640), (112, 69695), (140, 55756), (212, 36820), (263, 29680), (265, 29456), (280, 27878), (371, 21040), (424, 18410), (526, 14840), (530, 14728), (560, 13939), (742, 10520), (848, 9205), (1052, 7420), (1060, 7364), (1315, 5936), (1484, 5260), (1841, 4240), (1855, 4208), (2104, 3710), (2120, 3682), (2630, 2968)]