145507460

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{21211}}^1$

素因数の和:21241

約数の個数: 48

約数和(自身を含む): 356361600

約数和(自身を除く): 210854140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 21211, 42422, 84844, 106055, 148477, 212110, 296954, 424220, 593908, 742385, 1039339, 1484770, 2078678, 2969540, 4157356, 5196695, 7275373, 10393390, 14550746, 20786780, 29101492, 36376865, 72753730, 145507460]

約数ペア:

[(1, 145507460), (2, 72753730), (4, 36376865), (5, 29101492), (7, 20786780), (10, 14550746), (14, 10393390), (20, 7275373), (28, 5196695), (35, 4157356), (49, 2969540), (70, 2078678), (98, 1484770), (140, 1039339), (196, 742385), (245, 593908), (343, 424220), (490, 296954), (686, 212110), (980, 148477), (1372, 106055), (1715, 84844), (3430, 42422), (6860, 21211)]