55129640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:315

約数の個数: 96

約数和(自身を含む): 139255200

約数和(自身を除く): 84125560

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 251, 289, 323, 340, 380, 502, 578, 646, 680, 760, 1004, 1156, 1255, 1292, 1445, 1615, 2008, 2312, 2510, 2584, 2890, 3230, 4267, 4769, 5020, 5491, 5780, 6460, 8534, 9538, 10040, 10982, 11560, 12920, 17068, 19076, 21335, 21964, 23845, 27455, 34136, 38152, 42670, 43928, 47690, 54910, 72539, 81073, 85340, 95380, 109820, 145078, 162146, 170680, 190760, 219640, 290156, 324292, 362695, 405365, 580312, 648584, 725390, 810730, 1378241, 1450780, 1621460, 2756482, 2901560, 3242920, 5512964, 6891205, 11025928, 13782410, 27564820, 55129640]

約数ペア:

[(1, 55129640), (2, 27564820), (4, 13782410), (5, 11025928), (8, 6891205), (10, 5512964), (17, 3242920), (19, 2901560), (20, 2756482), (34, 1621460), (38, 1450780), (40, 1378241), (68, 810730), (76, 725390), (85, 648584), (95, 580312), (136, 405365), (152, 362695), (170, 324292), (190, 290156), (251, 219640), (289, 190760), (323, 170680), (340, 162146), (380, 145078), (502, 109820), (578, 95380), (646, 85340), (680, 81073), (760, 72539), (1004, 54910), (1156, 47690), (1255, 43928), (1292, 42670), (1445, 38152), (1615, 34136), (2008, 27455), (2312, 23845), (2510, 21964), (2584, 21335), (2890, 19076), (3230, 17068), (4267, 12920), (4769, 11560), (5020, 10982), (5491, 10040), (5780, 9538), (6460, 8534)]