28606180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:149

約数の個数: 96

約数和(自身を含む): 67415040

約数和(自身を除く): 38808860

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 37, 43, 58, 62, 74, 86, 116, 124, 145, 148, 155, 172, 185, 215, 290, 310, 370, 430, 580, 620, 740, 860, 899, 1073, 1147, 1247, 1333, 1591, 1798, 2146, 2294, 2494, 2666, 3182, 3596, 4292, 4495, 4588, 4988, 5332, 5365, 5735, 6235, 6364, 6665, 7955, 8990, 10730, 11470, 12470, 13330, 15910, 17980, 21460, 22940, 24940, 26660, 31820, 33263, 38657, 46139, 49321, 66526, 77314, 92278, 98642, 133052, 154628, 166315, 184556, 193285, 197284, 230695, 246605, 332630, 386570, 461390, 493210, 665260, 773140, 922780, 986420, 1430309, 2860618, 5721236, 7151545, 14303090, 28606180]

約数ペア:

[(1, 28606180), (2, 14303090), (4, 7151545), (5, 5721236), (10, 2860618), (20, 1430309), (29, 986420), (31, 922780), (37, 773140), (43, 665260), (58, 493210), (62, 461390), (74, 386570), (86, 332630), (116, 246605), (124, 230695), (145, 197284), (148, 193285), (155, 184556), (172, 166315), (185, 154628), (215, 133052), (290, 98642), (310, 92278), (370, 77314), (430, 66526), (580, 49321), (620, 46139), (740, 38657), (860, 33263), (899, 31820), (1073, 26660), (1147, 24940), (1247, 22940), (1333, 21460), (1591, 17980), (1798, 15910), (2146, 13330), (2294, 12470), (2494, 11470), (2666, 10730), (3182, 8990), (3596, 7955), (4292, 6665), (4495, 6364), (4588, 6235), (4988, 5735), (5332, 5365)]