127221520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1193}}^1$

素因数の和:1280

約数の個数: 80

約数和(自身を含む): 312694272

約数和(自身を除く): 185472752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 43, 62, 80, 86, 124, 155, 172, 215, 248, 310, 344, 430, 496, 620, 688, 860, 1193, 1240, 1333, 1720, 2386, 2480, 2666, 3440, 4772, 5332, 5965, 6665, 9544, 10664, 11930, 13330, 19088, 21328, 23860, 26660, 36983, 47720, 51299, 53320, 73966, 95440, 102598, 106640, 147932, 184915, 205196, 256495, 295864, 369830, 410392, 512990, 591728, 739660, 820784, 1025980, 1479320, 1590269, 2051960, 2958640, 3180538, 4103920, 6361076, 7951345, 12722152, 15902690, 25444304, 31805380, 63610760, 127221520]

約数ペア:

[(1, 127221520), (2, 63610760), (4, 31805380), (5, 25444304), (8, 15902690), (10, 12722152), (16, 7951345), (20, 6361076), (31, 4103920), (40, 3180538), (43, 2958640), (62, 2051960), (80, 1590269), (86, 1479320), (124, 1025980), (155, 820784), (172, 739660), (215, 591728), (248, 512990), (310, 410392), (344, 369830), (430, 295864), (496, 256495), (620, 205196), (688, 184915), (860, 147932), (1193, 106640), (1240, 102598), (1333, 95440), (1720, 73966), (2386, 53320), (2480, 51299), (2666, 47720), (3440, 36983), (4772, 26660), (5332, 23860), (5965, 21328), (6665, 19088), (9544, 13330), (10664, 11930)]