31738240

素因数分解:

$2^7\times 5^1\times {\mathrm{101}}^1\times {\mathrm{491}}^1$

素因数の和:611

約数の個数: 64

約数和(自身を含む): 76781520

約数和(自身を除く): 45043280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 202, 320, 404, 491, 505, 640, 808, 982, 1010, 1616, 1964, 2020, 2455, 3232, 3928, 4040, 4910, 6464, 7856, 8080, 9820, 12928, 15712, 16160, 19640, 31424, 32320, 39280, 49591, 62848, 64640, 78560, 99182, 157120, 198364, 247955, 314240, 396728, 495910, 793456, 991820, 1586912, 1983640, 3173824, 3967280, 6347648, 7934560, 15869120, 31738240]

約数ペア:

[(1, 31738240), (2, 15869120), (4, 7934560), (5, 6347648), (8, 3967280), (10, 3173824), (16, 1983640), (20, 1586912), (32, 991820), (40, 793456), (64, 495910), (80, 396728), (101, 314240), (128, 247955), (160, 198364), (202, 157120), (320, 99182), (404, 78560), (491, 64640), (505, 62848), (640, 49591), (808, 39280), (982, 32320), (1010, 31424), (1616, 19640), (1964, 16160), (2020, 15712), (2455, 12928), (3232, 9820), (3928, 8080), (4040, 7856), (4910, 6464)]