123403920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1193}}^1$

素因数の和:1640

約数の個数: 80

約数和(自身を含む): 383761152

約数和(自身を除く): 260357232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 431, 862, 1193, 1293, 1724, 2155, 2386, 2586, 3448, 3579, 4310, 4772, 5172, 5965, 6465, 6896, 7158, 8620, 9544, 10344, 11930, 12930, 14316, 17240, 17895, 19088, 20688, 23860, 25860, 28632, 34480, 35790, 47720, 51720, 57264, 71580, 95440, 103440, 143160, 286320, 514183, 1028366, 1542549, 2056732, 2570915, 3085098, 4113464, 5141830, 6170196, 7712745, 8226928, 10283660, 12340392, 15425490, 20567320, 24680784, 30850980, 41134640, 61701960, 123403920]

約数ペア:

[(1, 123403920), (2, 61701960), (3, 41134640), (4, 30850980), (5, 24680784), (6, 20567320), (8, 15425490), (10, 12340392), (12, 10283660), (15, 8226928), (16, 7712745), (20, 6170196), (24, 5141830), (30, 4113464), (40, 3085098), (48, 2570915), (60, 2056732), (80, 1542549), (120, 1028366), (240, 514183), (431, 286320), (862, 143160), (1193, 103440), (1293, 95440), (1724, 71580), (2155, 57264), (2386, 51720), (2586, 47720), (3448, 35790), (3579, 34480), (4310, 28632), (4772, 25860), (5172, 23860), (5965, 20688), (6465, 19088), (6896, 17895), (7158, 17240), (8620, 14316), (9544, 12930), (10344, 11930)]