31987840

素因数分解:

$2^7\times 5^1\times {\mathrm{151}}^1\times {\mathrm{331}}^1$

素因数の和:501

約数の個数: 64

約数和(自身を含む): 77209920

約数和(自身を除く): 45222080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 151, 160, 302, 320, 331, 604, 640, 662, 755, 1208, 1324, 1510, 1655, 2416, 2648, 3020, 3310, 4832, 5296, 6040, 6620, 9664, 10592, 12080, 13240, 19328, 21184, 24160, 26480, 42368, 48320, 49981, 52960, 96640, 99962, 105920, 199924, 211840, 249905, 399848, 499810, 799696, 999620, 1599392, 1999240, 3198784, 3998480, 6397568, 7996960, 15993920, 31987840]

約数ペア:

[(1, 31987840), (2, 15993920), (4, 7996960), (5, 6397568), (8, 3998480), (10, 3198784), (16, 1999240), (20, 1599392), (32, 999620), (40, 799696), (64, 499810), (80, 399848), (128, 249905), (151, 211840), (160, 199924), (302, 105920), (320, 99962), (331, 96640), (604, 52960), (640, 49981), (662, 48320), (755, 42368), (1208, 26480), (1324, 24160), (1510, 21184), (1655, 19328), (2416, 13240), (2648, 12080), (3020, 10592), (3310, 9664), (4832, 6620), (5296, 6040)]