219971660

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:343

約数の個数: 96

約数和(自身を含む): 503365632

約数和(自身を除く): 283393972

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 43, 62, 74, 86, 124, 148, 155, 172, 185, 215, 223, 310, 370, 430, 446, 620, 740, 860, 892, 1115, 1147, 1333, 1591, 2230, 2294, 2666, 3182, 4460, 4588, 5332, 5735, 6364, 6665, 6913, 7955, 8251, 9589, 11470, 13330, 13826, 15910, 16502, 19178, 22940, 26660, 27652, 31820, 33004, 34565, 38356, 41255, 47945, 49321, 69130, 82510, 95890, 98642, 138260, 165020, 191780, 197284, 246605, 255781, 297259, 354793, 493210, 511562, 594518, 709586, 986420, 1023124, 1189036, 1278905, 1419172, 1486295, 1773965, 2557810, 2972590, 3547930, 5115620, 5945180, 7095860, 10998583, 21997166, 43994332, 54992915, 109985830, 219971660]

約数ペア:

[(1, 219971660), (2, 109985830), (4, 54992915), (5, 43994332), (10, 21997166), (20, 10998583), (31, 7095860), (37, 5945180), (43, 5115620), (62, 3547930), (74, 2972590), (86, 2557810), (124, 1773965), (148, 1486295), (155, 1419172), (172, 1278905), (185, 1189036), (215, 1023124), (223, 986420), (310, 709586), (370, 594518), (430, 511562), (446, 493210), (620, 354793), (740, 297259), (860, 255781), (892, 246605), (1115, 197284), (1147, 191780), (1333, 165020), (1591, 138260), (2230, 98642), (2294, 95890), (2666, 82510), (3182, 69130), (4460, 49321), (4588, 47945), (5332, 41255), (5735, 38356), (6364, 34565), (6665, 33004), (6913, 31820), (7955, 27652), (8251, 26660), (9589, 22940), (11470, 19178), (13330, 16502), (13826, 15910)]