81407120

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{293}}^1$

素因数の和:480

約数の個数: 80

約数和(自身を含む): 199487232

約数和(自身を除く): 118080112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 151, 184, 230, 293, 302, 368, 460, 586, 604, 755, 920, 1172, 1208, 1465, 1510, 1840, 2344, 2416, 2930, 3020, 3473, 4688, 5860, 6040, 6739, 6946, 11720, 12080, 13478, 13892, 17365, 23440, 26956, 27784, 33695, 34730, 44243, 53912, 55568, 67390, 69460, 88486, 107824, 134780, 138920, 176972, 221215, 269560, 277840, 353944, 442430, 539120, 707888, 884860, 1017589, 1769720, 2035178, 3539440, 4070356, 5087945, 8140712, 10175890, 16281424, 20351780, 40703560, 81407120]

約数ペア:

[(1, 81407120), (2, 40703560), (4, 20351780), (5, 16281424), (8, 10175890), (10, 8140712), (16, 5087945), (20, 4070356), (23, 3539440), (40, 2035178), (46, 1769720), (80, 1017589), (92, 884860), (115, 707888), (151, 539120), (184, 442430), (230, 353944), (293, 277840), (302, 269560), (368, 221215), (460, 176972), (586, 138920), (604, 134780), (755, 107824), (920, 88486), (1172, 69460), (1208, 67390), (1465, 55568), (1510, 53912), (1840, 44243), (2344, 34730), (2416, 33695), (2930, 27784), (3020, 26956), (3473, 23440), (4688, 17365), (5860, 13892), (6040, 13478), (6739, 12080), (6946, 11720)]