25981720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{911}}^1$

素因数の和:976

約数の個数: 64

約数和(自身を含む): 63037440

約数和(自身を除く): 37055720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 92, 115, 124, 155, 184, 230, 248, 310, 460, 620, 713, 911, 920, 1240, 1426, 1822, 2852, 3565, 3644, 4555, 5704, 7130, 7288, 9110, 14260, 18220, 20953, 28241, 28520, 36440, 41906, 56482, 83812, 104765, 112964, 141205, 167624, 209530, 225928, 282410, 419060, 564820, 649543, 838120, 1129640, 1299086, 2598172, 3247715, 5196344, 6495430, 12990860, 25981720]

約数ペア:

[(1, 25981720), (2, 12990860), (4, 6495430), (5, 5196344), (8, 3247715), (10, 2598172), (20, 1299086), (23, 1129640), (31, 838120), (40, 649543), (46, 564820), (62, 419060), (92, 282410), (115, 225928), (124, 209530), (155, 167624), (184, 141205), (230, 112964), (248, 104765), (310, 83812), (460, 56482), (620, 41906), (713, 36440), (911, 28520), (920, 28241), (1240, 20953), (1426, 18220), (1822, 14260), (2852, 9110), (3565, 7288), (3644, 7130), (4555, 5704)]