28398045380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{28789}}^1$

素因数の和:28909

約数の個数: 96

約数和(自身を含む): 64695966720

約数和(自身を除く): 36297921340

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 43, 62, 74, 86, 124, 148, 155, 172, 185, 215, 310, 370, 430, 620, 740, 860, 1147, 1333, 1591, 2294, 2666, 3182, 4588, 5332, 5735, 6364, 6665, 7955, 11470, 13330, 15910, 22940, 26660, 28789, 31820, 49321, 57578, 98642, 115156, 143945, 197284, 246605, 287890, 493210, 575780, 892459, 986420, 1065193, 1237927, 1784918, 2130386, 2475854, 3569836, 4260772, 4462295, 4951708, 5325965, 6189635, 8924590, 10651930, 12379270, 17849180, 21303860, 24758540, 33020983, 38375737, 45803299, 66041966, 76751474, 91606598, 132083932, 153502948, 165104915, 183213196, 191878685, 229016495, 330209830, 383757370, 458032990, 660419660, 767514740, 916065980, 1419902269, 2839804538, 5679609076, 7099511345, 14199022690, 28398045380]

約数ペア:

[(1, 28398045380), (2, 14199022690), (4, 7099511345), (5, 5679609076), (10, 2839804538), (20, 1419902269), (31, 916065980), (37, 767514740), (43, 660419660), (62, 458032990), (74, 383757370), (86, 330209830), (124, 229016495), (148, 191878685), (155, 183213196), (172, 165104915), (185, 153502948), (215, 132083932), (310, 91606598), (370, 76751474), (430, 66041966), (620, 45803299), (740, 38375737), (860, 33020983), (1147, 24758540), (1333, 21303860), (1591, 17849180), (2294, 12379270), (2666, 10651930), (3182, 8924590), (4588, 6189635), (5332, 5325965), (5735, 4951708), (6364, 4462295), (6665, 4260772), (7955, 3569836), (11470, 2475854), (13330, 2130386), (15910, 1784918), (22940, 1237927), (26660, 1065193), (28789, 986420), (31820, 892459), (49321, 575780), (57578, 493210), (98642, 287890), (115156, 246605), (143945, 197284)]