90291800

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23761}}^1$

素因数の和:23796

約数の個数: 48

約数和(自身を含む): 220986600

約数和(自身を除く): 130694800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 23761, 47522, 95044, 118805, 190088, 237610, 451459, 475220, 594025, 902918, 950440, 1188050, 1805836, 2257295, 2376100, 3611672, 4514590, 4752200, 9029180, 11286475, 18058360, 22572950, 45145900, 90291800]

約数ペア:

[(1, 90291800), (2, 45145900), (4, 22572950), (5, 18058360), (8, 11286475), (10, 9029180), (19, 4752200), (20, 4514590), (25, 3611672), (38, 2376100), (40, 2257295), (50, 1805836), (76, 1188050), (95, 950440), (100, 902918), (152, 594025), (190, 475220), (200, 451459), (380, 237610), (475, 190088), (760, 118805), (950, 95044), (1900, 47522), (3800, 23761)]